Query: user: Can you search round trip flights?
assistant: Where will you be leaving from?
user: We are two people, leaving from Phoenix. We're traveling to San Francisco.
assistant: When are you coming back? And when would you like to leave?
user: We're leaving on March 3rd, and we'd like to get back the 12th of March.
assistant: There is an American Airlines flight. The flight leaves at 6:15 am, and the return flight leaves at 8:10 am. The price of the ticket is $174.
user: Are there any other avaliable flights. I'd like to travel in Economy Class, and I prefer to fly with United Airlines.
assistant: I found 1 flights that might suit you. There is a United Airlines flight, which leaves at 11:50 pm, and returns at 2:15 pm. The price of the ticket is $140.
user: When does the return flight arrive?
assistant: It arrives at 4:22 pm.
user: Sounds good to me.
assistant: Should I buy the tickets for it?
user: Nope, not right now. Could you find me one-way flights?
assistant: There is a United Airlines flight, which leaves at 11:50 pm and has 0 stops. The price of the ticket is $128.
user: Is it refundable? When does it arrive?

Intent: Flights:SearchOnewayFlight