You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Christopher Moore, I want to cancel my reservation can you please help me with it?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: No problem,Thank you your service.

ASSISTANT: Thank you for opting us.