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! What theater would you like tickets for?
User: The megaplex nearby
Assistant: And how many tickets would you like to buy?
User: 2
Assistant: What time would you like to see the movie?
User: 7 would be best
Assistant: Great. Would you prefer a regular screen or the 3D one?
User: Regular
Assistant: OK. There is a regular screen showing at 7:05pm.
User: What time is the 3D showing?
Assistant: The 3D showing is at 7:15
User: Let's book that one instead
Assistant: OK. Two tickets for the 3D showing will be $30.