Query: user: I am flying with some friends on a trip, please find a one way flight from no particular airline for 3 people.
assistant: Where do you want to go?
user: We are going to Washington.
assistant: When do you want to leave from and when do you want to leave?
user: Search for flights on San Fran and change the destination to LAX. I want it for the 4th of March and look for refundable tickets, our plans might change.
assistant: There is a Southwest Airlines flight that takes off at 5:10 pm and has 1 stop. It has a price of $179.
user: From which airport does it depart?

Intent: Flights:SearchOnewayFlight