Query: user: I'm looking for one way flights.
assistant: Leaving from where and heading to where?
user: Leaving from Chicago, going to Phoenix.
assistant: When is your departure date?
user: That's on March 10th.
assistant: I have an American Airlines flight leaving at 4:30 AM with 1 stop for $271.
user: What else is available?
assistant: There is a Delta Airlines flight leaving at 8:30 AM with 1 stop for $270.
user: I like the Delta flight.
assistant: Would you like to book tickets?
user: Not yet. Could you search round trips for me?
assistant: Returning when please?
user: I'd like to return on the 12th of March.
assistant: I have 1 possibility, a Delta Airlines flight leaving at 8:30 AM and coming back at 11:55 AM for $288.
user: Where does it fly into?
assistant: It lands at Sky Harbor International Airport.
user: What is the arrival time of the return flight and the arrival time of the onward flight?
assistant: The return flight is at 10:07 PM and the onward flight is at 1:17 PM.
user: That one will work.
assistant: Would you like to reserve that?
user: Yes I would.

Intent: Flights:ReserveRoundtripFlights