You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself William Garcia.

ASSISTANT: Garcia, how can I help you today?

USER: I will be booking a flight to Washington DCA on 08/19.

ASSISTANT: Ok, may I know your your source code and return date?

USER: I will be returning to Phoenix PHX on 08/21.

ASSISTANT: Ok, wait for a moment please.

USER: Ok, take your time.

ASSISTANT: I found a flight that connection 1 is Spirit airlines as per your details, can I proceed to booking?

USER: Ok, please proceed with booking my flight.

ASSISTANT: Your ticket is confirmed with flight number 1007.

USER: Thanks for helping me, great service by your agency.

ASSISTANT: My pleasure, have a nice trip.

USER: You are welcome.