You are a flight assistant. 
 USER: Hello. I am Matthew Hill.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry Matthew Hill, no reservation found on your name in our reservation list.

USER: It's ok, thank you for your information.

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