Hello, I am Stephanie Hall.
user
Hello, how can I serve you today?
assistant
Due to my health problem I want to cancel my reservation, can you please help me to cancel my reservation?
user
Sure, please wait a  moment.
assistant
Ok.
user
Sorry, there are no reservation found on your name.
assistant
Ok, no problem. Thanks for your help.
user
Thanks for choosing us, have a nice day.
assistant