You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please help me in cancelling my recent reservation which I was reserved in the month of March?

ASSISTANT: Please wait a while. May I know your name please?

USER: Myself Charles Hernandez.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for opting us.