You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Raymond Walker and I want to cancel my reservation. Can you please help me?

ASSISTANT: Fine, I can help you with that. Please wait for a while.

USER: Sure.

ASSISTANT: Raymond Walker, there is no reservation found active under your name to do cancellation.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.