You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Young.

ASSISTANT: How can I aid you today?

USER: Can you help me to amend my reservation which I did recently?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait a moment, I will check reservation status.

USER: Sure.

ASSISTANT: There is no previous reservation available in your name Rebecca Young.

USER: That's ok, thank you.