Hello.
Hello. How may I help you?
I would like to change my recent reservation because my trip dates are got postponed, can you help me?
Sure, I am here to help you with that, can I know your good name to proceed further?
I am Larry Davis.
 I am very sorry to inform you that there is no reservation found under your name in our database.
That's ok, thank you for giving information.
Thank you for reaching us.