Query: user: I need to find one-way flights leaving Chicago.
assistant: No problem! Where are you planning to visit?
user: I'm traveling to Seattle.
assistant: When do you want to leave?
user: I need to leave the 9th of this month.
assistant: I've found 4 flights for you. I recommend the American Airlines flight that leaves at 2:50 pm. It has 1 stop and costs $307. Does that interest you at all?
user: Which airport does the flight depart from? Is the ticket refundable?
assistant: The flight leaves from the O'Hare International Airport. Unfortunately, the ticket is not refundable.
user: What about one of the other flights?
assistant: There's a Delta Airlines flight that leaves at 3:35 pm. It has 0 stops and costs $187. Does that interest you at all?
user: That sounds perfect.
assistant: Would you like me to purchase tickets for you?
user: No, I'm good.
assistant: Do you need help with anything else?
user: Can we search for roundtrip flight? I want to travel in economy.

Intent: Flights:SearchRoundtripFlights