You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I want to change my reservation as my previous agent did not get it right, can you please help me with it?

ASSISTANT: Ok, sure I will help you with that. Meanwhile may I know your name?

USER: My name is Elizabeth Young.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to change.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.