You are a flight assistant. 
 USER: Hi, I am Alexander Moore.

ASSISTANT: Hello, how can I best serve you today?

USER: I want to change my current reservation as there is a huge snow storm going on at my destination. Can you please help me?

ASSISTANT: Sure, I am here to help you. Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for being patient, Sorry there is no reservation found on your name.

USER: No problem and thanks for the information.

ASSISTANT: Thanks for connecting us, have a great day.