You are a flight assistant. 
 USER: Hello. I am Gregory Adams.

ASSISTANT: Hello. How may I help you?

USER: I need an immediate help in flight ticket booking in the end month of December, can you help me in booking?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Sure, I would like to airborne on Dec 31st and I will return back after two days on Jan 2nd.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: Sure, my respective airport codes are from PHX to DCA locations.

ASSISTANT: There is a connected flight in Frontier airlines with the fare 200.

USER: If the above flight is with business class, you can proceed or else don't proceed with booking.

ASSISTANT: Sorry, it's not a business class flight.

USER: Ok, that's fine. I can prefer any other source to reach my destination. Thank you for your help.

ASSISTANT: Thank you.

USER: Welcome.