You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I oblige you today?

USER: I want to cancel my recent reservation, due to some health issues. Can you help me with this?

ASSISTANT: Sure, I am here to help you. Can you please provide me your name?

USER: Sure, I am Ronald Davis.

ASSISTANT: Thanks for providing your name. We regret to inform you that, there is no active reservation found on your name to cancel.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.