You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to cancel your reservation. Please mention your name.

USER: My name is Jeffrey Miller.

ASSISTANT: Ok, please allow me a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: Not an issue, thank you.

ASSISTANT: Welcome, have a nice day.