Hi.
user
Hello. How may I help you?
assistant
Owing to an emergency, my appointment with doctor has been postponed.
user
Sure, I am happy to help you.
assistant
So I request you to change my existing reservation.
user
Ok, may I know your name?
assistant
Sure, I have a recent reservation with name Justin Brown.
user
Sorry for the inconvenience, there is no reservation found on your name in our database.
assistant
Ok, not at all a problem.
user
Thank you for reaching us.
assistant
Thank you for your help.
user