Query: user: I am interested in finding a round trip flight.
assistant: Can you tell me where you want to go, and when you plan to return?
user: I want to arrive in Vancouver, BC, and I will return from my trip on March 14th.
assistant: Can you tell me the date when you want to depart?
user: I want to depart for my trip on March 7th.
assistant: Which is the location from where you will depart?
user: I will begin my trip from Atlanta, GA.
assistant: There are 2 flights which match what you need. One of the flights is with Delta Airlines, and it leaves at 3:20 pm, as for the returning flight, it leaves at 2:50 am. The ticket for this flight will cost you $242.
user: Is there some other flight? I do not care very much about the airline.
assistant: There is also an United Airlines flight, which leaves at 6:15 am, and when it returns it takes off at 3:15 am. The ticket for this flight costs $253.
user: This flight seems as what I want. Can you buy me the tickets for this flight?
assistant: Can you please confirm that you want to buy Economy class flight ticket for 1 person for the flight of United Airlines which leaves from Atlanta on March 7th at 6:15 am to go to Vancouver, and it returns on March 14th at 3:15 am.
user: This suits me well.

Intent: Flights:ReserveRoundtripFlights