You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: I am Christopher Lee. I made a earlier reservation to attend my friend marriage, due to some problems it got cancelled. Can you please cancel my reservation?

ASSISTANT: Sure Lee, I am here to help you with this.

USER: Thank you.

ASSISTANT: Sorry Lee, there is no reservation found as per your name to cancel it.

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

ASSISTANT: Thank you for reaching us.