Query: user: Please help me look for round trip flights.
assistant: Where will you be going?
user: I'm going to SF.
assistant: And where will you be traveling from?
user: I'll be traveling from London.
assistant: And what date will you be leaving on?
user: I'll be leaving on March 9th.
assistant: And when will you be returning?
user: I'll be returning on the 11th of this month.
assistant: There's an American Airlines flight that departs at 3:05 pm and the return flight leaves at 7:05 am. A ticket is $393.
user: What other flights are there?
assistant: There's a Delta Airlines flight that departs at 8 am and the return flight leaves at 10:05 am. A ticket is $416.
user: When does the departure flight arrive?
assistant: It arrives at 4:57 pm.
user: That works for me.
assistant: Do you want me to buy the tickets?
user: Yes please, and get an Economy ticket.
assistant: Please make sure this is correct, I'll buy you 1 Economy ticket for Delta Airlines for London to San Francisco with a departure on March 9th at 8 am and return on March 11th that leaves at 10:05 am.
user: Yeah, buy that please. How many stops are there? And what's the departure airport?

Intent: Flights:ReserveRoundtripFlights