Hi.
Hello, how can I assist you?
As my appointment with doctor got postponed I want to reschedule my reservation, can you help me in changing my existing reservation?
Sure, may I know your name?
Yes, you can call me as Kenneth Lopez.
Ok, please wait a moment I will check with it and revert you.
Sure.
Sorry there is no existing reservation found in your name.
That's ok, thank you for the response.
Thank you, have a nice day.