User: Looking to get movie tickets for tonight.
Assistant: What movie?
User: The Invisible Man.
Assistant: What theater?
User: AMC Yorktown.
Assistant: What showtime?
User: After 8:30 PM.
Assistant: How many tickets?
User: I need 2 tickets.
Assistant: Are you interested in the IMAX version?
User: No, standard format is fine.
Assistant: 2 tickets to see The Invisible Man..
User: Actually, I changed my mind, change the movie to Call of the Wild.
Assistant: Switch movie from The Invisible Man to Call of the Wild.