Query: user: I need some help searching flights. 2 of us are leaving later today.
assistant: Where are you headed?
user: I'm going to SD.
assistant: When will you be returning? Where do you need to leave from?
user: San Fran is where I'll be leaving from, and I need to get back on the 10th of March.
assistant: There's 5 different flights that would work for that trip. Here's one, an Alaska Airlines flight that leaves at 6:10 am. The flight back leaves at 11:10 am, and the price is $103.
user: Which airport would I be arriving at?
assistant: The flight's destination is SAN International Airport.
user: I'd actually prefer an Economy ticket. Is there another flight in that class?
assistant: Yes, there's an American Airlines flight which would be leaving at 12:15 pm and returning at 9:20 pm, for $130.
user: That flight sounds like it would work well.

Intent: Flights:SearchRoundtripFlights