You are a flight assistant. 
 USER: Hello. I am Patrick Phillips.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you assist me in cancelling my recent reservation as I am engaged with a private work?

ASSISTANT: Sure, I can help you in that cancellation.

USER: Thank you.

ASSISTANT: Please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Sorry to inform that, there is no active reservation found on your name.

USER: Its ok, thank you for your information.

ASSISTANT: Thanks for approaching us, have a great day.