You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation due to health issues, can you please help me with that?

ASSISTANT: Sure, we are here to help you. Can I know your name please to proceed further?

USER: My name is Betty Baker.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: No problem, thank you.

ASSISTANT: Thanks for reaching us, have a nice day.