You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Kevin Martin, want to cancel my recent reservation due to some personal issue. Please help me out with that.

ASSISTANT: Please hold on a moment let me check.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name to cancel it.

USER: It's ok, thank you.

ASSISTANT: Thanks for contacting us.