Query: user: Please find me one way flights.
assistant: When is departure?
user: Departure is tomorrow.
assistant: What is departure city and arrival city?
user: Departure city is Portland and LA is arrival city and I want Economy.
assistant: I found 5. At 10:10 am on Alaska Airlines with 0 stops for $155.
user: Is there something for 2 people?
assistant: There is an American Airlines that departs from 7:20 am and 1 stop for $196.
user: When does it arrive?
assistant: It arrives at 11:40 am.
user: What airport and is it refundable?
assistant: Not refundable and arrival is LAX International Airport.
user: Is there any other flights available?
assistant: Yes, a Delta Airlines departs at 9:35 am with 1 stop for $169.
user: That is good for me.
assistant: Would you like tickets now?
user: No, hold off on the tickets.
assistant: Is there anything else I can help you with?
user: Yes, a round trip ticket to arrive back next Monday.
assistant: I found 1. A Delta Airlines departure at 9:35 am that returns at 6:50 am and the ticket is $197.
user: What is the departing airport and arrival time?
assistant: Departs from PDX International Airport arriving at 3:17 pm.
user: That is what I need.

Intent: Flights:SearchRoundtripFlights