Query: user: Can you find me some round trip flights?
assistant: Sure, but first tell me where are you flying out of and when are you returning.
user: I want 4 tickets and I'll be flying out of Phoenix on March 1st, returning the day after tomorrow.
assistant: Where are you flying to?
user: I fly to Portland.
assistant: How about a Delta Airlines flight taking off at 10:15 pm with the return flight taking of at 8 pm. Tickets are $210 each.
user: Sounds perfect for me. Can you get Economy tickets for me?

Intent: Flights:ReserveRoundtripFlights