Hello.
user
Hello, How can I best serve you today?
assistant
I want to cancel my recent reservation owing to an emergency.
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
I am William Wright.
user
 I am very sorry to inform you that there is no reservation found under your name in our database.
assistant
No problem, thank you for checking.
user
Thank you for choosing us.
assistant