User: I wanna see a movie
Assistant: what movie?
User: Frozen 2
Assistant: How many tickets?
User: I want 2
Assistant: are they both adults?
User: Yes
Assistant: any veterans?
User: No
Assistant: what time of showing?
User: 7:30 pm
Assistant: okay, two tickets for 7:30 pm. will that be the IMAX theater?
User: Yes
Assistant: Okay, two for Imax for Frozen 2
User: wait
Assistant: yes?
User: I wanna change the screening
Assistant: sure