Query: user: I need a one-way flight.
assistant: Where are you traveling?
user: I am going to London. I'd prefer an economy ticket.
assistant: When do you want to leave? What city will you be leaving from?
user: I am leaving today from Chicago.
assistant: I have 3 possible flights. American Airlines has a 1 stop flight for $444 which leaves at 4:30 am.
user: Is that ticket refundable?
assistant: No, it is not refundable.
user: What other flights are available? I'd prefer Southwest Airlines. I don't care what class.
assistant: Southwest Airlines has a flight at 10:20 am with 0 stops. That one will be $233.
user: When does it arrive?
assistant: The flight arrives at your destination at 0:49 am.
user: That one is good. Please buy me a ticket.

Intent: Flights:ReserveOnewayFlight