You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: I am Larry Johnson. I want to cancel my reservation, due to my health issues. Could you help me in cancellation?

ASSISTANT: Sure, may I know your name please?

USER: Already I mentioned above.

ASSISTANT: Just hold on I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform you that there is no reservation found with this name.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thanks for picking us.