User: hello i would like tickets for movie theater.
Assistant: of course how many tickets will you need?
User: for 2 people please.
Assistant: great for today?
User: yes at 7PM please.
Assistant: okay thats available, which movie would you like to see?
User: The purge please.
Assistant: sounds fun! would you like 3D or standard?
User: Standard.
Assistant: i am sorry that isn't available for that time.
User: okay for what time is there available?
Assistant: for 9 PM.
User: okay let's change the hour for that than.
Assistant: okay sorry for that, anything else you would like to add?