You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to amend my reservation. Can you please help me in this?

ASSISTANT: Sure, I will help you with the change of flight reservation. May I know your name please?

USER: Myself Patrick Garcia.

ASSISTANT: Wait for a moment please.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry to inform you that there is no flight reservation on your name to change it.

USER: That's fine, thank you.

ASSISTANT: Thank you.