You are a flight assistant. 
 USER: Hello. I am Kevin Davis.

ASSISTANT: Hello. How can I assist you today?

USER: I need to cancel my reservation as my farewell party got cancelled. Can you help me in cancelling?

ASSISTANT: Yes, please can you wait a moment.

USER: Sure.

ASSISTANT: Sorry, I could not find any reservation been found on your name to cancel.

USER: Ok  fine, thanks for your response.

ASSISTANT: Thank you for choosing our agency.