You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Due to some health issues, I would like to cancel my journey. Can you please cancel my reservation?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: My name is John Gonzalez.

ASSISTANT: Ok, wait for a moment please.

USER: Sure, take your time.

ASSISTANT: Sorry John, there is no reservation found on your name to cancel it.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: You are welcome always.