Query: user: I'm looking for a one way flight.
assistant: Okay, where are you traveling from and traveling to? What date do you need to travel?
user: I'm traveling from San Francisco to Phoenix and I need to depart on the 11th of March.
assistant: I've found 5 flights that would work for you. There's an Alaska Airlines flight that has 0 layovers and departs 11 am. The ticket is $132 per person.
user: What else is available?
assistant: I found a flight on American Airlines that departs at 8:20 pm and has 0 layovers. It costs $121 per person.
user: Is there anything else?
assistant: I have a flight on Delta Airlines that departs at 11:45 am and has 1 layover. It's $195 per person.
user: Okay. Let's search for round trip flights.
assistant: What day do you want to return?
user: I want to fly back on March 13th.

Intent: Flights:SearchRoundtripFlights