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