User: I'd like to buy movie tickets for tonight.
Assistant: What movie would you like to see?
User: What is playing at Cinema Carousel?
Assistant: Frozen, Cats, Star Wars.
User: Hmm..Star Wars sounds good.
Assistant: They have showings at 6pm, 7pm, 8pm, 9pm.
User: I'd like tickets to the 8pm showing.
Assistant: What screen type would you like?