User: Hi I wanna book some tickets?
Assistant: Sure which film?
User: Is Frozen 2 still playing?
Assistant: Yes, what time?
User: 7:30 PM
Assistant: and how many tickets?
User: 2 please
Assistant: do you just want the standard showing?
User: Yes please
Assistant: and what theater?
User: Harkins
Assistant: Okay, and that was 7:30 right?
User: wait can I change that?
Assistant: Yes