Query: user: I want a rental car.
assistant: At what time, location, and until what date do you want the car?
user: I want the car until March 13th in Phoenix, AZ, and I'll pick it up at 10:30 in the morning.
assistant: When do you want it from?
user: I want it in Philadelphia on the 6th of this month.
assistant: I have 2 cars that fit your needs. There's a Standard Toyota Corolla available at Intercity Terminal on March 6th.
user: Is there a bus going there?
assistant: When are you leaving?
user: I'm leaving on March 5th from New York City.
assistant: I found 7 buses. There's a $21 economy ticket on a bus leaving at 7:40 am.
user: Are there any other buses?
assistant: There's a $23 economy ticket on a bus leaving at 8 am.
user: I want economy tickets on other buses please.
assistant: I found 5 buses. There's a $22 economy ticket on a bus leaving at 11:30 am.
user: That's good, are there any roundtrip flights going there for 1 person?
assistant: Are you leaving on March 6th and returning on March 13th?
user: Yes, I am. I want to start traveling on the 2nd of March.
assistant: Do you want a $63 American Airlines flight leaving at 3:45 pm, with the return flight taking off at 4:45 pm?
user: How many stops does the flight have?

Intent: Flights:SearchRoundtripFlights