You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Frank Young.

ASSISTANT: How can I help you?

USER: Due to health problem. I can't able to take the flight. Can you cancel my reservation?

ASSISTANT: Please give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name. Thank you for reaching us.

USER: It's fine. Thank you for your help.

ASSISTANT: Have a great day.