Hello,.
Hello, how may I amend you?
 I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed. Can you help me to change my reservation?
Sure, we are here to assist you.
Thank you.
May I know your good name please?
Sure, Gregory Nelson is my name.
Please wait for a while.
Ok, take your own time.
Thanks for your valuable time. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
That's ok, No problem. Thanks for your kind help.
Thanks for choosing us.