Query: user: Can you help me search for some flights?
assistant: What is your destination? When would you like to leave, and when are you coming back?
user: I'd like to leave next Wednesday on a flight to Phoenix, AZ and return on the 13th of this month.
assistant: Which airport would you like to depart from?
user: If possible, American Airlines since I'll be leaving from London.
assistant: I was able to find 1 flight for your trip. There is a flight with American Airlines that leaves at 3:05 pm, with a returning flight that leaves at 7:35 am. Ticket cost is $407.
user: Are tickets refundable? And where does the flight depart from?
assistant: Tickets are not refundable, unfortunately. The flight will depart from Heathrow International Airport.
user: That sounds great, this will be a short trip. Can you buy tickets for the flight?
assistant: To confirm: You'd like 1 Economy class ticket for the American Airlines flight to London, with a stop in Phoenix, departing next Wednesday at 3:05 pm on March 13th, with a returning flight at 7:35 am.
user: Incorrect. There will be 3 people with me total.

Intent: Flights:ReserveRoundtripFlights