App Inventor

Scenario:
Your app will be used by the staff who work for a cinema, e.g. HOYTS.
The cinema has a range of movie sessions each day. Customers can book to attend a movie session,
and if their circumstances change they can cancel their booking at a later time.
They want you to make an app that can be used to store the booking information and the customer
details of the people attending a movie session.