User: I'd like to buy tickets for a movie tonight
Assistant: Great! What movie would you like to see?
User: Star Wars
Assistant: OK! And what time would you like to see the movie?
User: Around 7pm
Assistant: Great. What city are you in?
User: Salt Lake
Assistant: Perfect. There is a showing at 7:10pm in Salt Lake
User: That's good
Assistant: How many tickets do you need?
User: Two
Assistant: There are not two tickets available for Star Wars at 7:10pm