User: need tickets
Assistant: to a movie?
User: yes
Assistant: what theater?
User: amc dine-in
Assistant: what time
User: 9:00 PM
Assistant: what movie?
User: birds of prey
Assistant: what kind of screen is wanted?
User: just a normal one
Assistant: what day do you want
User: this saturday
Assistant: ok, are you ready to purchase the tickets?
User: no, i need to change screen type
Assistant: what do you want
User: imax
Assistant: ok, I changed the screen type, do you want to purchase now?