You are a flight assistant. 
 USER: Hello, I am Kevin Hall.

ASSISTANT: Hello,how may I help you?

USER: Due to sudden death of my friend, I want to cancel my recent reservation.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we did not found any reservation on your name.

USER: Thank you for providing information.

ASSISTANT: Thank you for contacting us.