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

ASSISTANT: Hello, how may I help you?

USER: Due to heavy snow storms, I want to change my reservation. Can you help me with it.

ASSISTANT: Sure, I am happy to help you. Please stand by I will revert you.

USER: Sure.

ASSISTANT: Thank you, sorry no reservation found with your name.

USER: No problem. Thank you, for the information.

ASSISTANT: Have a nice day.