Hello, I am Raymond Brown.
Hello, how may I help you?
I want to reschedule my existing reservation as my interview got postponed. Can you hrlp  me in doing it?
Sure. Please wait for a moment.
Ok.
Please provide the journey details?
My new Origin is CA - LAX and destination is NY - LGA. My travelling dates are 01/26 to 01/28.
I found a flight with price 100, and one connection. It is Southwest airlines and flight number 1000.
Ok, please book my ticket.
Sure. Your ticket has been confirmed.