Hello.
Hello. How can I aid you today?
I want to do some changes in my existing reservation. Can you help me for that?
Sure, I am here to help you. May I know on whose name the ticket has been reserved formerly?
My name is Amanda Jackson.
Sorry Amanda Jackson, there are no flights reserved on your given name formerly.
That's ok, thank you for your checking.
Welcome, thank you for choosing us. Have a great day.