You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I have some personal matters that need fixing so I need to change an existing reservation. Can you please help me?

ASSISTANT: Sure, I am perky to help you. I need your name to check reservation.

USER: My name is Amy Smith.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: I am here to inform you that, there is no reservation found on your name.

USER: That's not a problem. Thank you.

ASSISTANT: Thank you for approaching us.