Query: user: I'm looking for some flights.
assistant: Where are you going to and leaving from?
user: I am going to Nairobi, Kenya. I am going from Philadelphia.
assistant: Where are you planning to leave and when are you coming back?
user: I want to come back on 10th of March. And, I am leaving on 5th of this month.
assistant: I have an American Airlines flight. It leaves at 4:45 pm. The return is at 5:35 am. The price is $385.
user: That sounds perfect to me. Can you buy flight tickets?
assistant: Let's confirm the details. Flight from Philadelphia to Nairobi with American Airlines next Tuesday at 4:45 pm. The return flight is on March 10th leaving at 5:35 am. They are economy. The number of passengers is 1.
user: Yes that is perfect.

Intent: Flights:ReserveRoundtripFlights