Query: user: I'm thinking about taking a trip. Search round trip flights available by United Airlines please.
assistant: Sure, but first please tell me where are you planning to take a trip too? Do you know your depart and return dates?
user: Yeah, I would like to hit the road on the 13th of this month. I'll be heading out of Philadelphia and traveling over to NYC.
assistant: Ok, thanks for that information. What is your departure date?
user: Oh yeah, I'll be going, hopefully next Tuesday.
assistant: That sounds good. One moment while I search for you. I've located a ticket for $61. This convenient flight is with United Airlines departing at 4:45 am and arriving at 10:05 am. I only show this 1 flight.
user: Alright, when would my return flight be arriving? Find out which airport my flight would be departing from please.
assistant: One moment. Your flight would depart from PHL International Airport. I show arrival time for 10:56 am.
user: That sounds perfect.
assistant: Should I proceed and purchase your ticket?
user: No, please don't. I would like to continue searching one-way flights please.
assistant: Ok, no problem. I found 1 flight with United Airlines. The outbound leaves at 4:45 am and has 0 lay overs. This price would be $54. How does that sound?
user: Find out if the ticket is refundable and when would the onward flight arrive?

Intent: Flights:SearchOnewayFlight