Query: user: I would like to search flights, please.
assistant: Where will you be leaving from?
user: I am leaving from NY. I prefer to fly Delta Airlines.
assistant: When do you plan to depart and come back, and where would you like to fly to?
user: I am traveling to LAX. I am leaving on the 1st, returning on March 14th, and I would prefer to travel in Economy.
assistant: Delta Airlines has an outbound flight at 7:30 am with a return light at 10:55 pm, and the ticket price is $196.
user: Is the ticket refundable? Which airport does the flight depart from?

Intent: Flights:SearchRoundtripFlights