You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to cancel my reservation, due to my health issues, so please help me in the cancellation.

ASSISTANT: Sure, we are glad to help you with cancellation. To proceed further, may I know your name?

USER: Myself Samantha Martin.

ASSISTANT: Thanks for providing your name, please standby.

USER: Ok.

ASSISTANT: Sorry to inform you that, there was no reservation found on your name to cancel it.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.