You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Paul Nelson, want to cancel my ticket. Can you please help me in this?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry Paul, there is no active reservation found with your name in our records.

USER: It's ok, thank you.

ASSISTANT: My pleasure.