Hi.
Hello, how may I assist you?
I need to change my existing reservation because my exam has been postponed.
May I know your new  journey dates? May I know your good name please?
I am Scott Lewis.
May I know your new journey dates?
I want to depart on 06/23 and return on 06/25.
Can you share your journey points?
I would like to start from Austin, TX - AUS and return from Washington, DC - DCA.
Wait for a couple of minutes, I will be back and revert you.
Ok.
We are glad to inform you that you have a flight with your details. The airline is AA and the flight number is 1026 with price 700. Can I reserve?
May I know connection details?
Connection is 1.
Don't proceed for booking.
Ok. Thank you for choosing us.
Price limit must less than 500. Can you please check is there any other flight?
There is no flight with 500.
Ok, I will find another option.
Ok. Have a great day.