You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you at this moment?

USER: I am Christopher Harris.

ASSISTANT: Ok.

USER: Due to weather problems I need cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, I am gleeful to help you. Please wait for a  while.

USER: Sure.

ASSISTANT: Sorry, no reservation done on our name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.