Query: user: Can you please find me one-way flights?
assistant: When and where are you leaving from and where are you planning to visit?
user: I am leaving from SD and traveling to Phoenix. I prefer American Airlines and want to leave on March 3rd.
assistant: I found 1 flight on American Airlines. The flight leaves at 3:15 pm and has 0 stops. The cost per ticket is $92.
user: What airport does it depart from?
assistant: The flight departs from SAN International Airport.
user: That sounds good. Can you please search for round trip flights?
assistant: When are you coming back?
user: I want to return on the 7th of March.
assistant: There is an American Airlines flight leaving at 3:15 pm and returns at 6:25 am. The cost per ticket is $143.
user: That sounds good.
assistant: Should I purchase the tickets?
user: Yes, please. I want to fly in economy.

Intent: Flights:ReserveRoundtripFlights