Hi.
user
Hello, how can I assist you for the day?
assistant
 I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?
user
 May, I know your good name?
assistant
Helen Miller here.
user
Please wait for a moment.
assistant
Sure.
user
Sorry, we found no reservation on your given name.
assistant
No problem, thanks for the information.
user
Thank you for reaching us.
assistant