Query: user: I want you to look for a round trip flight for me.
assistant: When would you like to leave and return?
user: I want to leave on the 10th and return on the 14th of this month. There would be four of us.
assistant: Where are you heading to and where would you be leaving from?
user: I will be leaving Seattle, WA and heading to Portland, Or.
assistant: There are 1 suitable flights. There is an outbound flight on united airlines that leaves at 4:15 am. The flight returns at 10:45 pm and it costs $75
user: Is it a refundable ticket?
assistant: No, sorry it is not.
user: What time would the onward flight land?
assistant: At 5:13 am.
user: That would be great.
assistant: Would you like the tickets?
user: Go ahead and book it for me.

Intent: Flights:ReserveRoundtripFlights