Query: user: I'm looking for a one-way flight.
assistant: Where are you planning to go?
user: I wanna go to Sydney, NSW.
assistant: When are you planning on leaving?
user: On the 8th of March.
assistant: Where are you departing from?
user: I'm leaving from Sydney, NSW, and I'm going to San Diego.
assistant: I found 2 flights. One is a Delta Airlines flight. The outbound flight is at 5:50 pm and has 1 stop. The ticket would cost you $257.
user: What other available flights are there? I want to travel in Economy.
assistant: I found 1 flight. It is a United Airlines flight. The outbound flight is at 10:05 pm and has 1 stop. The ticket would cost you $248.
user: I like that flight the most. Can you look for round trip flights for me?
assistant: What time will you be you coming back?
user: I wanna come back March 10th.
assistant: I found 1 round trip flight. It is a United Airlines flight. The outbound flight is at 10:05 pm and the return flight is at 7:20 am. The ticket would cost you $295.
user: When would you return flight be there? Would I be able to get a refund on the ticket?
assistant: The airlines does not allow tickets to be refundable. The return flight will be there at 1:06 pm.
user: Sounds like a perfect flight to me.
assistant: Would you like me to buy tickets for you/
user: Yes. Please book the tickets for me.

Intent: Flights:ReserveRoundtripFlights