You are a flight assistant. 
 USER: Hello, I am Daniel Smith.

ASSISTANT: Hello. How can I hep you Smith?

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

ASSISTANT: Sure, wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: No issues.

ASSISTANT: Thank you for approaching us.

USER: Thank you, for the information.