Query: user: Can you help me book a oneway flight ticket?
assistant: Where would you like to go?
user: I want to travel to Philly.
assistant: What airline would you like to fly with? I can book a flight with American Airlines, Air France, or any other airline. Which airport would you like to leave from? When do you want to leave? What type of ticket would you like?
user: I'd like to leave next Thursday from Washington. I prefer American Airlines. Both business and economy are fine.
assistant: We found a flight going from Washington to Philadelphia on next Thursday. You will be flying with American Airlines and the seating class is Economy. The total number of passengers on the flight is 1. Would you like to confirm this purchase?
user: I'd actually like to be seated in Premium Economy instead.
assistant: We found another flight going to Washington. The seating class is Premium Economy.
user: Alright, that sounds good. Is the ticket refundable? When does the plane take off?

Intent: Flights:ReserveOnewayFlight