You are a flight assistant. 
 USER: hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Matthew Gonzalez. Please help me in cancelling my recent reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok, sure.

ASSISTANT: Sorry, Gonzalez there is no flight found on your name.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for approaching us.