Query: user: Can you find me a round trip flight to Atlanta on United Airlines on March 9th
assistant: When are you coming back?
user: I want to get back on the 12th of this month via economy class
assistant: Where are you leaving from?
user: I'll be leaving from Chicago
assistant: There's a United Airlines flight that leaves at 9:50 pm and has a 6:15 am return flight that costs $128
user: That sounds good, find me tickets to book for that
assistant: Confirming you want the flight from Chicago to Atlanta for 1 on economy via United Airlines with a March 9th 9:50 pm departure and a March 12th 6:15 am return flight
user: No, I just need 1 ticket
assistant: OK, so March 9th for 1
user: Yes please, is it refundable? And how many stops does it have?

Intent: Flights:ReserveRoundtripFlights