User: Hello, I would like to buy some movie tickets.
Assistant: Hello, how many I help you?
User: I would like to buy some tickets for the movie "Dolittle".
Assistant: Sure, no problem. Let me pull up the search tab.
User: Thank you!
Assistant: You are welcome. What is the location?
User: The location is Dallas, Texas.
Assistant: What is the name of the movie theater?
User: The movie theater is Regal 7.
Assistant: How many movie tickets are you planning to buy?
User: Please mark 8 movie tickets.
Assistant: What time do you want?
User: I would like to have at 7:00 PM.
Assistant: Sure, no problem. What is your screening preference?
User: IMAX.
Assistant: I will put that down.
User: I apologize, please change the movie to 1917.
Assistant: Sure, no problem. Do you want the same time and screening?