User: Hi! I want to book two movie tickets please.
Assistant: Great! What movie?
User: I've been wanting to watch the new Star Wars film for a while.
Assistant: Okay perfect, what time would you prefer?
User: Can you do 6?
Assistant: There are no showings at that time. There's one at 7.
User: Okay, let's do 7.
Assistant: Any preference on the style of film?
User: What do you mean?
Assistant: IMAX, 3D or regular?
User: Oh, 3D please.
Assistant: Perfect.