diff --git a/.gitignore b/.gitignore
index 5e1422c9c..54a0fc95a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,7 @@
 /test/tmp/
 /test/version_tmp/
 /tmp/
-
+coverage
 # Used by dotenv library to load environment variables.
 # .env
 
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 000000000..deb52f2cd
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,9 @@
+require 'rake/testtask'
+
+Rake::TestTask.new do |t|
+  t.libs = ["lib"]
+  t.warning = true
+  t.test_files = FileList['specs/*_spec.rb']
+end
+
+task default: :test
diff --git a/lib/.keep b/lib/.keep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/lib/front_desk.rb b/lib/front_desk.rb
new file mode 100644
index 000000000..6605a4f40
--- /dev/null
+++ b/lib/front_desk.rb
@@ -0,0 +1,77 @@
+require 'date'
+
+require_relative '../lib/reservation.rb'
+require_relative '../lib/room.rb'
+
+module Hotel
+  class Front_desk
+
+    attr_reader :total_rooms, :total_reservations
+
+    ROOM_ID = (1..20)
+
+    def initialize
+      # an array of rooms
+      @total_rooms = room_generator
+      @total_reservations = []
+    end
+
+    # list of all rooms
+    def room_generator
+      new_room = []
+      count = 1
+      ROOM_ID.each do |room|
+        new_room << Room.new(count)
+      count += 1
+      end
+      return new_room
+    end
+
+    def list_rooms
+      return @total_rooms
+    end
+    # list of all reservations
+    def list_reservations
+      return @total_reservations
+    end
+
+    def available?(start_date, end_date)
+      available_rooms = []
+      first_day = DateTime.parse(start_date)
+      last_day = DateTime.parse(end_date)
+      # (StartA <= EndB) and (EndA >= StartB)
+
+      @total_reservations.each do |reserve|
+        if first_day <= (reserve.end_date - 1) && last_day >= reserve.start_date
+          open_room = reserve.room
+          @total_rooms.reject! { |room| room.room_id == open_room }
+        end
+      end
+
+      @total_rooms.each do |room|
+        available_rooms << room.room_id
+      end
+      return available_rooms
+    end
+
+    # to create a reservation
+    def add_room(start_date, end_date)
+      new_ticket = {}
+      new_ticket[:ticket_id] = 0
+      available = available?(start_date, end_date)
+
+      new_ticket[:room_id] = available[0]
+
+      new_ticket[:start_date] = DateTime.parse(start_date)
+      new_ticket[:end_date] = DateTime.parse(end_date)
+
+      reserved = Hotel::Reservation.new(new_ticket)
+
+      @total_reservations << reserved
+
+      return reserved
+    end
+
+
+  end
+end
diff --git a/lib/reservation.rb b/lib/reservation.rb
new file mode 100644
index 000000000..57bf7c761
--- /dev/null
+++ b/lib/reservation.rb
@@ -0,0 +1,33 @@
+require 'date'
+
+
+module Hotel
+  class Reservation
+
+    attr_reader :ticket_id, :start_date, :end_date, :room
+
+    @@count = 1
+
+    def initialize(input)
+
+      @ticket_id = @@count
+      @start_date = input[:start_date]
+      @end_date = input[:end_date]
+      @room = input[:room_id]
+      @@count += 1
+
+      if @end_date < @start_date
+        raise StandardError('Invalid Date Range')
+      end
+
+    end
+
+
+    def total_cost
+      duration = end_date - start_date
+      return ((duration - 1) * 200)
+    end
+
+
+  end
+end
diff --git a/lib/room.rb b/lib/room.rb
new file mode 100644
index 000000000..4254070e5
--- /dev/null
+++ b/lib/room.rb
@@ -0,0 +1,14 @@
+require 'date'
+
+module Hotel
+  class Room
+
+    attr_reader :room_id, :price, :reservations
+
+    def initialize(room)
+      @room_id = room
+      @price = 200
+    end
+
+  end
+end
diff --git a/specs/.keep b/specs/.keep
deleted file mode 100644
index e69de29bb..000000000
diff --git a/specs/front_desk_spec.rb b/specs/front_desk_spec.rb
new file mode 100644
index 000000000..5cfd6a5e1
--- /dev/null
+++ b/specs/front_desk_spec.rb
@@ -0,0 +1,73 @@
+require_relative 'spec_helper'
+require 'pry'
+
+describe 'Front_desk' do
+
+  describe 'Initialize' do
+    it 'creates a list of 20 rooms' do
+      admin = Hotel::Front_desk.new
+      admin.total_rooms.must_be_kind_of Array
+      admin.total_rooms.length.must_equal 20
+
+      admin.total_rooms.each do |room|
+        room.must_be_instance_of Hotel::Room
+      end
+    end
+
+    it 'creates a list of reservations' do
+      admin = Hotel::Front_desk.new
+      admin.total_reservations.must_be_kind_of Array
+
+      admin.total_reservations.each do |room|
+        room.must_be_instance_of Hotel::Reservation
+      end
+    end
+  end
+
+  describe 'list of rooms' do
+    it 'returns a list of all rooms' do
+      admin = Hotel::Front_desk.new
+      admin.list_rooms.must_be_kind_of Array
+      admin.list_rooms[10].must_be_kind_of Hotel::Room
+      admin.list_rooms[0].must_be_kind_of Hotel::Room
+      admin.list_rooms[21].must_be_nil
+    end
+  end
+
+  describe 'list of reservations' do
+    it 'can return a list of reservations' do
+      admin = Hotel::Front_desk.new
+      admin.add_room('3rd Feb 2020', '6th Feb 2020')
+      admin.total_reservations.must_be_kind_of Array
+      admin.total_reservations[0].must_be_instance_of Hotel::Reservation
+      admin.total_reservations[1].must_be_nil
+    end
+  end
+
+  describe 'available?' do
+    it 'returns a list of available rooms within the given dates' do
+
+      admin = Hotel::Front_desk.new
+      admin.add_room('4th Feb 2020', '6th Feb 2020')
+      admin.add_room('1st Feb 2020', '3rd Feb 2020')
+      admin.add_room('20th Mar 2020', '31st Mar 2020')
+
+      available_rooms = admin.available?('1st Feb 2020', '5th Feb 2020')
+
+      available_rooms.wont_include 1
+      available_rooms.must_be_kind_of Array
+    end
+  end
+
+
+  describe 'Add Room' do
+    it 'can create a reservation' do
+      admin = Hotel::Front_desk.new
+      new_date = admin.add_room('3rd Feb 2020', '6th Feb 2020')
+
+      admin.total_reservations.must_include new_date
+      new_date.must_be_kind_of Hotel::Reservation
+    end
+  end
+
+end
diff --git a/specs/reservation_spec.rb b/specs/reservation_spec.rb
new file mode 100644
index 000000000..8693ab079
--- /dev/null
+++ b/specs/reservation_spec.rb
@@ -0,0 +1,26 @@
+require_relative 'spec_helper'
+require 'pry'
+
+describe 'Reservation class' do
+
+  describe 'Initialize' do
+    it 'can create a new reservation' do
+      new_ticket = Hotel::Reservation.new({ start_date: DateTime.parse('3rd Feb 2020'), end_date: DateTime.parse('6th Feb 2020'), room_id: 1})
+
+      new_ticket.must_be_instance_of Hotel::Reservation
+    end
+
+    it 'will raise an Error if date range is invalid' do
+      proc { Hotel::Reservation.new({ start_date: DateTime.parse('10th Feb 2020'), end_date: DateTime.parse('6th Feb 2020'), room_id: 1}) }.must_raise StandardError
+    end
+  end
+
+  describe 'total cost' do
+    it 'can calculate the total cost of a reservation' do
+      new_ticket = Hotel::Reservation.new({ start_date: DateTime.parse('2nd Feb 2020'), end_date: DateTime.parse('6th Feb 2020'), room_id: 1})
+
+      new_ticket.total_cost.must_equal 600
+    end
+  end
+
+end
diff --git a/specs/room_spec.rb b/specs/room_spec.rb
new file mode 100644
index 000000000..e616fd44f
--- /dev/null
+++ b/specs/room_spec.rb
@@ -0,0 +1,13 @@
+require_relative 'spec_helper'
+
+
+describe 'Room' do
+  describe 'Initialize' do
+    it 'can create a new room' do
+      new_room = Hotel::Room.new(21)
+      new_room.room_id.must_equal 21
+      new_room.must_be_instance_of Hotel::Room
+    end
+  end
+
+end
diff --git a/specs/spec_helper.rb b/specs/spec_helper.rb
new file mode 100644
index 000000000..a71f96d5d
--- /dev/null
+++ b/specs/spec_helper.rb
@@ -0,0 +1,14 @@
+require 'simplecov'
+SimpleCov.start
+
+require 'time'
+require 'minitest'
+require 'minitest/autorun'
+require 'minitest/reporters'
+
+Minitest::Reporters.use! Minitest::Reporters::SpecReporter.new
+
+require_relative '../lib/front_desk'
+require_relative '../lib/room'
+require_relative '../lib/reservation'
+# Add simplecov