You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to amend my reservation due to some issues, can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Myself Richard Brown.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Brown, there is no reservation found as per your name in our database.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.