You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: Sure, I will help you with your request.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your previous reservation?

USER: Myself Michael Williams.

ASSISTANT: Please be on hold to check. Thank you for waiting, sorry as per your concern I can not amend your reservation as your reservation is not found as per our records.

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

ASSISTANT: Thank you for approaching us, have a great day.