User: Help me book movie tickets
Assistant: Sure thing, which theater you want?
User: AMC 34 in New York
Assistant: Sure, for which movie
User: Frozen
Assistant: How many tickets?
User: two
Assistant: What time you want the tickets for?
User: 7:00pm
Assistant: What screen type?
User: There is IMAX, 3D and Standard
Assistant: IMAX it is
User: Actually I want the tickets for 8:00pm instead
Assistant: no problem.