Domains: Flights_13

user: I want to go travelling soon, can you help me buy a one-way flight?

system: Where will you depart from?

user: I'll depart from San Fran, in a group of three, and I need refundable tickets.

system: When and where will you go?

user: I'll travel to Las Vegas on Friday next week.

system: Any preferred airline?

user: I'll firstly travel to NYC, and I prefer Alaska Airlines.

system: So I can book a flight for 3 people in Economy class, going from San Francisco to New York with Alaska Airlines, departing next Friday. Is this okay?

user: No, I like to travel Premium Economy. Can you search for American Airlines flights?

system: I'll update my search details with American Airlines and Premium Economy, okay?

user: Yes, that sounds good. Which airport will I fly to first, and when will the onward flight arrive?

system: Sorry, but the selected flight was unavailable. Do you want any further help?

user: No, thanks a lot.

system: Have a wonderful day!