Query: user: I would like to find a one way flight.
assistant: What city would you be departing from and what date would you like to travel?
user: I would like economy class tickets for this Sunday. I would like a flight from Washington.
assistant: Where are you planning to travel?
user: I will be flying to Toronto, Canada and I would like to use Southwest Airlines.
assistant: I found 1 flight with Southwest Airlines that match your criteria. The flight takes off at 4:40 am and has 0 stops. The total cost of this ticket is $106.
user: Okay thank you, that is all I need right now.

Intent: Flights:SearchOnewayFlight