You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I have got a mail from my superior to attend an urgent meeting. I want to cancel my reservation.

ASSISTANT: Ok, may I know your name to cancel your reservation?

USER: My name is Jerry White.

ASSISTANT: There is no reservation found on your name in our database, Jerry.

USER: Its ok. Thank you for the information.

ASSISTANT: Thank you so much for choosing our service to help you.