You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I help you.

USER: My name is Matthew Wright. I want to go to my friend marriage, so please help me to book a flight ticket.

ASSISTANT: Sure, could you please provide the city names?

USER: Sure, my source and destinations are DC-DCA, AZ-PHX.

ASSISTANT: OK, can you please mention your journey dates?

USER: And my departure day is 12/27, return day is 12/29.

ASSISTANT: OK, please wait a moment.

USER: OK sure.

ASSISTANT: Thanks for waiting, there is a flight 1024 in airline JetBlue available on that dates with price 200. Shall I proceed with your booking?

USER: Yes please.

ASSISTANT: OK Wright, your booking is done. Have a great journey!.

USER: OK, thank you.