User: Hi there. I want to watch a movie.
Assistant: Which movie do you want to watch?
User: 1917
Assistant: OK. What time and theater?
User: I'd like to book a 7:00 PM showing at the Cinemark Oakley Station theater.
Assistant: OK. How many people?
User: Two please.
Assistant: OK. Any screening preferences?
User: I'd like to see a showing that has 3D.
Assistant: Alright, I'm having you down as wanting to watch 1917 at the Cinemark Oakley Station theater at 7:00 PM in 3D with two people.
User: That's correct!
Assistant: Anything else?
User: Oh, wait a second. I don't want that theater.
Assistant: Which theater do you want to change to?