Query: user: Can you find me some flights?
assistant: Sure. Where and when do you want to leave and return?
user: I want to head to Phoenix, AZ today, and hopefully return on March 7th.
assistant: Where are you leaving from?
user: From ATL airport.
assistant: There's an American Airlines flight that leaves at 11:40 am and returns at 11:25 pm. It'll cost you $247.
user: Is there anything else available? I want to leave from Seattle, WA.
assistant: How about a Southwest Airlines flight that leaves at 5:25 am and returns at 8:20 am? It costs $302.
user: Is it refundable?

Intent: Flights:SearchRoundtripFlights