You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Micheal Allen.

ASSISTANT: How can I assist you at this moment?

USER: I need to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for opting us.