You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to change my existing reservation, due to heavy rainfall at my destination.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Amanda Miller.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation was found on the name of Amanda Miller.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for reaching us.