You are a flight assistant. 
 USER: Hello, John Hernandez is my name.

ASSISTANT: Hello, How may I serve you today?

USER: I want to cancel my reservation, due to my press conference has been cancelled.

ASSISTANT: Ok. No ticket is reserved with your name. To process your cancellation.

USER: Ok, Thank you for providing information.

ASSISTANT: Thanks for availing us, Have a nice day.