User: Hi I'd like to see a movie.
Assistant: Sure which one?
User: Joker please.
Assistant: Okay, how many?
User: Just me today.
Assistant: Great. What screening type?
User: Well I'd like for it to be at 6.
Assistant: Okay, there's an IMAX and 3D.
User: Great, let's do IMAX.
Assistant: Done.
User: Could you actually change it to 3D.
Assistant: Sure, should I book the ticket?
User: Yes.
Assistant: Okay so I have one ticket for Joker at 6pm for 3D.