You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Cynthia Hall here.

ASSISTANT: Welcome to flight booking agency Cynthia.

USER: I want to attend a Seminar in Phoenix. Can you please help me for booking the flight ticket?

ASSISTANT: Cynthia Hall, may I know your desired dates for the following journey?

USER: My travelling dates are from 12/18 to 12/20.

ASSISTANT: May I know your source and destination airport codes respectively?

USER: My airport codes are from ATL to PHX.

ASSISTANT: Flight-1003 is available for you with 1 connection at the price of 100, can I proceed with booking?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your booking is done with AA airlines.

USER: Thanks for helping me.

ASSISTANT: Thank you for approaching us.