You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Amanda Mitchell.

ASSISTANT: Sure, we are to help you.

USER:  I want to change my reservation due to heavy storm. Can you help me in changing?

ASSISTANT: Please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, unfortunately no reservation found with your name.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.