You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

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

USER: Thank you.

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

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome.