Query: user: I need a one way flight.
assistant: What city would you like to leave from and on what date?
user: Phoenix, Az on the 5th of March.
assistant: Where will you be flaying too?
user: to SFO.
assistant: How about an American Airlines flight departing at 7:35 am with 1 layover for $184?
user: DO you have another option with Premium Economy?
assistant: How about a Delta Airlines flight departing at 11:55 am with 0 layovers for $171?
user: Where does it arrive? Is the ticket refundable?
assistant: It arrives into SFO International Airport. It is a nonrefundable ticket.
user: What are some other options?
assistant: what do you think of a Southwest Airlines flight departing at 9:55 pm with 0 layovers for $190?
user: That is nice? Can you show me round trip flights?
assistant: When would you like to return.
user: I need to be back on the 7th of March. The ticket is for 1 person.

Intent: Flights:SearchRoundtripFlights