Hi.
Hello, how may I help you today?
As my exam got postponed, can you help me to change my existing reservation?
Sure, I am here to help you. May I know your name please?
Sure, my name is Rebecca Brown.
Ok, please wait for a moment.
Ok.
Sorry Brown, there is no reservation found as per your name to change your reservation.
That's ok, thank you.
You are welcome.