title: Cinema Booking Application
body: <p>I am creating a cinema application in Ruby on Rails where users can log in and view movies and the times and dates they're being shown. What I want to do is create a booking system so that a user, e.g. "Joe Bloggs", can select a film, e.g. "Jaws", and a seat in its 20:00 showing at the cinema. Has anyone got some suggestions for how I can create this?</p>
  
  <p>I already have a lot of the tables and entities needed, but what I'm asking is how to code this into the application? Is there a gem that I could use?</p>