Query: user: Please help me find a round trip flights for 4 people.
assistant: Where you are coming from and when do you plan to leave? Where you are going?
user: I plan to go to Los Angeles from Las Vegas on March 10th.
assistant: Until when?
user: Until March 12th.
assistant: I got 4 flights and one is American Airlines for only $88 with outbound flight leaves at 9:30 am and return flight leaves at 8:25 pm.
user: Which airport the flight will arrive>

Intent: Flights:SearchRoundtripFlights