Hello.
user
Hello, how may I assist you?
assistant
I want to change my exiting reservation, I have some another important work on that dates, can you please change my reservation?
user
Ok, may I know your good name?
assistant
Sure, my name is Margaret Wright.
user
Ok. There is no reservation found with your name.
assistant
It's ok no problem. Thank you for your information.
user
Most welcome.
assistant