You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I be of your help?

USER: Please cancel my reservation, which is reserved under my name Stephen King? As I met with an accident, and unable to travel.

ASSISTANT: Sure, let me check the reservation list and revert you.

USER: Ok, Please go on.

ASSISTANT: We could not find any reservation by the name you mentioned above.

USER: That's Fine, Not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.