Query: user: I need to look for some round trip flights.
assistant: Where will you be departing from?
user: I'm going to depart from SFO.
assistant: What are your departure and return dates?
user: I'll be departing on March 1st and returning on March 10th.
assistant: Where will you be traveling to?
user: I'm going to Chi-town.
assistant: There are 4 flights that can work. There's an American Airlines flight with an outbound flight leaving at 3:20 pm and return flight leaving at 7:05 am. The ticket price is $198.
user: What's the departure and arrival airports?
assistant: The departure airports is SFO International Airport. The arrival airport is O'Hare International Airport.
user: What other flights are there?
assistant: There's a Delta Airlines flight with an outbound flight leaving at 10:05 pm and return flight leaving at 10:40 am. The ticket price is $178.
user: I like that one. Can you book me tickets?

Intent: Flights:ReserveRoundtripFlights