Query: user: On this Sunday, could you find a round trip flight for me?
assistant: From which place you are moving from? What do you want to visit?
user: I am moving from London, UK to ATL.
assistant: When will you return back?
user: I will be back on March 11th.
assistant: A flight from American Airlines which leaves at 8:35 pm and the return flight will leave at 3:30 pm. The cost of the ticket is $371.
user: Whether any other flights available? I like United Airlines.
assistant: I searched and found 1 flight for you. It is a United Airlines flight which moves at 0:25 am and the return flight will leave at 6:15 am. The cost of the ticket is $343.
user: Is is refundable?
assistant: Sorry. The ticket is not refundable.
user: It is good for me.
assistant: Shall I book the ticket?
user: Yes. Book the ticket.
assistant: Kindly ensure that, on March 3rd, a United Airlines Economy class flight from London to Atlanta is moving at 0:25 am. The return date is March 11th and the flight leaves at 6:15 am. The ticket has been reserved for 1 person.
user: Yes. It is good. What is the arriving time of the flight?

Intent: Flights:ReserveRoundtripFlights