User: Hi there, I'm looking for movie tickets tonight in Chicago.
Assistant: Sounds great, which movie would you like to see?
User: Either 1917 or the Joker.
Assistant: How many tickets do you need?
User: Just two, please.
Assistant: Great, do you have a preference on the screening option?
User: Yes, 3D if possible.
Assistant: What time are you looking for?
User: 7 pm would be great.
Assistant: Sure, let me look into this. One moment please.
User: Thanks!
Assistant: Unfortunately, I don't see either movie available at that time for the 3D option.