Hi.
user
Hello, good morning.
assistant
My name is Paul Williams.
user
I hope you are fine, how can I help you?
assistant
 My scheduled examination dates has been postponed, so I would like to change my reservation.
user
Ok. Please wait for a while, I will check the details and get back to you.
assistant
Ok.
user
Sorry for the inconvenience, there is no reservation found on your name.
assistant
That's ok, thank you for your help.
user
Thank you for approaching us, have a nice day.
assistant
Most welcome.
user