You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Patrick Nelson, can you please help me in cancelling my flight ticket?

ASSISTANT: Sure, I am ready to help you with cancelling your reservation.

USER: Thank you for considering my request.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure, take your time.

ASSISTANT: Sorry Patrick Nelson, no reservation has found under your name to cancel.

USER: Ok, that's fine. Thank you for your help.

ASSISTANT: Thank you for choosing us, have a good day.