TicketBooker What to Do Refactor to improve maintainability Add new functionality: Add child ticket Under 5s are free Age 5 - 12 are half price Commands Command Description set ticket price Sets the prices of a standard ticket. add (standard/student) {name} {age} Adds a ticket for a standard or student. Requires a name and an age. print summary Displays the Total numbers of each tickets type sold, the total ticket revenue for each tick type and the total revenue. exit Exits the console app. Other Info Ticket Types: Standard - Full price Students - 20% off standard ticket