Query: user: Can you help me search for flights?
assistant: Where are you departing from?
user: I am departing from Los Angeles.
assistant: When do you want to return?
user: I am leaving on the 11th of March, and I'd like to return on the 14th of this month.
assistant: What is your destination?
user: I would like to go to Ciudad de Mexico in an Economy class seat.
assistant: There is an available American Airlines flight. The departing flight is at 10:30 am, and the return flight is at 8:05 am. The ticket costs $208.
user: Are there any other options? I plan to leave on Saturday this week.
assistant: I've found 2 flights that match your search. One is a Delta Airlines flight. The departing flight is at 9:15 am, and the return flight is at 1:45 pm. The ticket costs $243.
user: Yes, that flight sounds good.

Intent: Flights:SearchRoundtripFlights