You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I would like to cancel my recent reservation as my exams has been postponed, can you help me in cancelling?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Sure.

ASSISTANT: May I know your name?

USER: Myself Cynthia Anderson.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, have a nice day.