You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Larry White, want to cancel my reservation due to some personal reason. Can you please help me?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Please wait for a while.

USER: Ok.

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

USER: It's ok, thank you.

ASSISTANT: Most welcome.