Hi.
user
 Hello, how can I assist you for the day?
assistant
 I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
I am Sandra Edwards.
user
Sorry, we found no reservation on your given name.
assistant
No problem, thanks for the information.
user
Thank you for choosing us.
assistant