You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Carter here.

ASSISTANT: How may I help you now?

USER: I need to cancel my reservation, which is done recently. Can you please hep me out?

ASSISTANT: Sure, I will help you. Please allow me to check with your previous booking.

USER: Thank you for considering my request.

ASSISTANT: Sorry to say, there is no flight reservation available by your name.

USER: That's ok, no problem.

ASSISTANT: Thank you for approaching our services.

USER: Thank you for the information.