Java Cinema/Theatre Reservation System

Hello All, I would like a JAVA source code to a cinema/theatre reservation system that allows a customer to make a booking to view a movie, select the seating in the cinema room, and also be able to cancel a booking as well. The cinema reservation system must be able to allow an assigned manager to make updates to bookings. The cinema reservation system I want is very much similar to a hotel reservation/booking system functionality but this source code must be in java, no graphical user interface required just the coding. I hope someone out there will be able to help me, I will be so grateful! Thanking you in advance for reading and helping.