You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation because of my health issues. Can you please help me out?

ASSISTANT: Ok, please provide me your name? I will let you know about your previous reservation status.

USER: My name is John White.

ASSISTANT: Sorry White, there is no reservation found. Thank you for reaching us.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Welcome.