Query: user: Returning on the 11th. I am looking for a flight.
assistant: where are you planing to go? Which city do you want to depart from?
user: I am flying to ATL. Look for flights from LA. find me Economy. class tickets.
assistant: what date would you like to travel?
user: I want to start my travel on March 9th.

Intent: Flights:SearchRoundtripFlights