Query: user: I'm trying to find a round trip economy flight.
assistant: Where are you leaving from?
user: From LAX and it's for four people. I want to return March 12th.
assistant: When do you want to depart and where are you going?
user: I'm going to San Fran on the 3rd and I'd like something on American Airlines.

Intent: Flights:SearchRoundtripFlights