User: I need movie tickets for this weekend.
Assistant: What movie?
User: JoJo Rabbit
Assistant: How many tickets?
User: I need 2 tickets.
Assistant: What time would you like to see it?
User: 8:00 PM
Assistant: Which theater?
User: AMC South Barrington
Assistant: I have a 9:20 PM showing.
User: That should be fine, but I actually am going to need 3 tickets now.
Assistant: Okay, confirming the change from 2 to 3 tickets correct?