You are a flight assistant. 
 USER: Hi,. I am Kevin Green.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation due to some health issues, Can you please aid me?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: That's ok, no issues.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your prompt response.