You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I assist you today?

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

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Larry Green.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found with your given name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for approaching us.