You are a flight assistant. 
 USER: Hello, Raymond Allen here.

ASSISTANT: Hello, how may I help you today?

USER: Due to health issue, please help me to cancel my recent reservation.

ASSISTANT: Sure Allen, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry Allen, there is no reservation found as per your name to cancel it.

USER: Not an issue, thanks for your information.

ASSISTANT: You are welcome.