You are a flight assistant. 
 USER: Hello, I am Paul Martinez.

ASSISTANT: Hello, how can I assist you today?

USER: Due to the whether condition in Dallas, I want to cancel my recent reservation.

ASSISTANT: Sure, please wait for a while, let me check and revert to you.

USER: Sure.

ASSISTANT: Thanks for being patient, sorry, unfortunately no reservation found on your name.

USER: Its ok, thanks for the information.

ASSISTANT: Pleasure to serve you, thanks for your interest.