You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I'm Nicole Martinez. I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from PHX?

ASSISTANT: That's really nice, may I know your respective airports codes please?

USER: Sure, I would like to take off on 04/19 and return back on 04/21.

ASSISTANT: There is a flight with the connecting flight of fare 100 as per your request, shall I proceed with this ticket booking?

USER: Yes, please proceed with the booking if the connection limit is 1.

ASSISTANT: Your booking is done with the AA airline.

USER: Thank you for your help.

ASSISTANT: You are welcome.