User: Hello, I'd like to purchase some movie tickets.
Assistant: Hi there! I can help you.
User: Great thank you!
Assistant: What area or location sir?
User: downtown Chicago please
Assistant: Ok, and what movie sir?
User: Bad Boys for Life please.
Assistant: Got it. And for how many people?
User: 3 tickets please.
Assistant: Ok, and for what time sir?
User: How about 7:00 PM please.
Assistant: Got it. And what type of showing?
User: Let's do 3D please.
Assistant: Ok, I will look for you.
User: Oh Sir, I'd like to see Frozen 2 instead of my original request.
Assistant: Ok, let me check that against your other preferences.