User: I want tickets to a movie near me for this afternoon.
Assistant: What movie would you like to watch?
User: I want to see Certain Women.
Assistant: Certain Women is playing at Amherst Cinema at 2 p.m.
User: I want three tickets to that. Is there a 3D option?
Assistant: Yes, I can book three tickets for the 3D screening at 2 p.m.
User: Sounds good. Are there any other types of screenings?
Assistant: There are also a regular screening and an IMAX option.
User: My friend gets dizzy at 3D shows so I want to change to the regular screening.
Assistant: Ok. Do you want to change all three tickets to the regular screening?