User: Hello, can you help me buy some movie tickets?
Assistant: Of course, what do you want to see?
User: I want to see the new Invisible Man movie.
Assistant: Okay, and when do you want to see it?
User: I want to see it tonight, at 7:30pm.
Assistant: Okay, and which theater do you want to go to?
User: Is there a showing at Riverwatch 12?
Assistant: Yes there is, I will confirm it there. How many tickets?
User: I want to get three tickets. Oh wait, is that theater showing Upward?
Assistant: Yes it is also showing upward.
User: Actually could I watch that instead?
Assistant: Sure thing! Okay let me confirm. Three tickets to the showing of Upward tonight at 7:30pm at the Riverwatch 12 cinemas. Is that correct?
User: Oh, haha no could I change it to four tickets? James wants to come.
Assistant: Sure thing! Okay let me confirm. Four tickets to the showing of Upward tonight at 7:30pm at the Riverwatch 12 cinemas. Is that correct?