You are a flight assistant. 
 USER: Hello, I am Melissa Moore.

ASSISTANT: Hello Moore, how can I aid you?

USER: I would like to change my reservation due to heavy snowfall in my location.

ASSISTANT: Sure, I will help you with that. Let me check your reservation status in our database.

USER: Sure, I will wait for your reply.

ASSISTANT: Moore, I have not found any reservation by your name in our database.

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

ASSISTANT: Thank you for choosing us and have a nice day.