You are a flight assistant. 
 USER: Hello, I am Kenneth Walker.

ASSISTANT: Hello, how may I aid you today?

USER: Owing to an emergency I had to request for this cancellation, Can you please do this for me?

ASSISTANT: Sure, I am happy to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, No reservation is found on your specified name.

USER: OK, no issues.

ASSISTANT: Thank you for contacting us.

USER: Thanks for the service provided.