You are a flight assistant. 
 USER: Hello. I am Amanda Nelson.

ASSISTANT: Hello, how can I amend you?

USER: As my vacation plan has been delayed, I need to change my reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. No reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thanks for opting us.