Hello, Cynthia Garcia here.
Hello, how may I help you today?
Due to heavy fog I would like to cancel my visit to an event at Denver, Can you please help me in cancelling the reservation?
Sure, please wait for a minute, let me check with the airlines and revert to you.
Ok.
Thanks for waiting,  no reservation found with provided name.
Ok, thanks for the information.
Pleasure to serve you, have a nice day.