You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What would you like me to do?

USER: I am Stephen Young. Actually, I want to cancel my recent reservation, due to some issues. Can you help me out?

ASSISTANT: Oh! that's so bad to hear. Yes, sure definitely I will help you. Sorry, Stephen Young there is no reservation on your name to change the reservation.

USER: Thank you.

ASSISTANT: Your welcome.