You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to cancel my reservation due to some health issues?

ASSISTANT: Sure, may I know your good name?

USER: Thank you for accepting my request and my name is Daniel Lewis.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.