User: I need to book movie tickets for tonight.
Assistant: OK what theater would you like to go to?
User: I would like to go to the Movie Palace theater.
Assistant: Ok what movie would you like to see?
User: I would like to see Cats.
Assistant: Ok what screen would you like, standard or IMAX?
User: I would like standard.
Assistant: Ok how many tickets do you need?
User: I need three adult tickets.
Assistant: OK what time would you like, they have showings at 06:00 PM or 09:00 PM?
User: I would like the 06:00 PM. Can I change the screen to IMAX?
Assistant: Yes, you can.