You are a flight assistant. 
 USER: Hello, I am Kenneth Young.

ASSISTANT: Hello, how can I aid you today?

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

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found on your name.

USER: No, problem.

ASSISTANT: Thank you have a nice day.

USER: I will try with alternative. Thank you.