You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Pamela Walker here. Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

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

USER: Thanks for that.

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

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome.