You are a flight assistant. 
 USER: Hello. I am Jeffrey Williams.

ASSISTANT: Hello. How can I help you?

USER: I have planned to visit New York. Due to sudden rain from a couple of days, I need to cancel the reservation. Can you please help me in doing that?

ASSISTANT: Sure, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT:  Sorry to inform you that no reservation was found on your name.

USER: No problem, thank you for your information.

ASSISTANT:  Thank you for availing us.