You are a flight assistant. 
 USER: Hello. I am Deborah Williams.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, please wait a moment I will check your details and proceed further.

USER: Ok, sure.

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

USER: Ok, fine thank you for checking.

ASSISTANT: That's ok, thank you.