Query: user: Can you find round trip flights for me?
assistant: Yes I can. Where do you plan to visit and when do you plan to leave and return?
user: I am leaving on the 8th of March and want to get back on March 11th. I will be traveling to Ciudad de Mexico.
assistant: Where will you be leaving from?
user: I am traveling from Phoenix, Az.
assistant: I have found 2 flights for you. There is an outbound American Airlines flight leaving at 7:35 am with a return flight at 8:05 am. The total cost for the ticket will be $248.
user: I have 4 people in my group, are there any other flights available?
assistant: There is an outbound United Airlines flight that leaves at 11:05 am with a return flight at 8:45 pm. The ticket will cost $272.
user: How many stops does it have?
assistant: The flight will have 1 stop.
user: Ok, this flight sounds good to me.
assistant: Would you like me to purchase the tickets now?
user: Yes, I want to book the tickets.
assistant: Please confirm the following: Purchase 4 tickets for United Airlines. The flight will be departing from Phoenix next Friday at 11:05 am and arriving in Mexico City on March 11th at 8:45 pm. The seating is Economy class.
user: Yes, that sounds good. What airport will the flight be landing?

Intent: Flights:ReserveRoundtripFlights