Hi.
user
Hello, how may I aid you today from my end?
assistant
I am Kevin Hall. Can you help me in changing my reservation, as my exam is postponed?
user
Sure, I am here to help you out. Please allow me a moment.
assistant
Ok.
user
Sorry  Kevin Hall, there is no reservation found on your name in our database.
assistant
That's ok, thank you.
user
Thank you for reaching us.
assistant