Query: user: Hi, could you help me search for a round trip flight to SF on the 13th of this month?
assistant: When do you plan to depart?
user: I will be departing on March 6th for a short trip.
assistant: And where do you plan to depart from?
user: I will be departing from CDMX.
assistant: I have found 2 available flightss, one of which is an American Airlines flight which departs at 2:55 pm and returns at 1:20 pm which costs $180.
user: I see, are there any alternatives available?
assistant: Yes, there is a United Airlines flight too which departs at 8:45 pm and returns at 9:15 am. This will cost you $261.
user: Do you know whether refunds are allowed for this flight?
assistant: Unfortunately, this is a non-refundable ticket.
user: I see, how many layovers does this flight have and when will I be returning from my trip?
assistant: There are 1 layovers for this flight and your return flight arrives at 8:05 pm.
user: This sounds great, could you help me purchase the flight tickets please?
assistant: Sure, please confirm your purchase of 1 economy class seat for the United Airlines flight from Mexico City to San Francisco from March 6th at 8:45 pm to March 13th at 9:15 am.
user: That is fine for me.

Intent: Flights:ReserveRoundtripFlights