Domains: Flights_15

user: I am in a mood for holiday and want you to buy me a oneway flight ticket from Vancouver.

system: Would you tell me about the airlines you prefer, like Alaska Airlines, Air Canada or any other airlines? Also when are you leaving and where do you want to go?

user: We are three people and we leave on Monday next week. I would choose Air Canada and I am going to Vegas.

system: Help me verify these details. You are taking a flight from Vancouver to Las Vegas. You want to fly with Air Canada and the date of departure is next Monday. You will be flying Economy and the number of passengers will be 3.

user: No I want to go to Philadelphia instead.

system: Ok. So you want a flight to Philadelphia with Air Canada?

user: That is right. What airport is this flight be departing from?

system: I am so sorry that I couldn't book your ticket. Is there anything else I can help you with?

user: No. Thank you.

system: Have a nice day!