You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Please assist me to cancel my reservation as my exams was cancelled.

ASSISTANT: Sure, I am here to help you in cancelling. Please, provide me your name to check your reservation status.

USER: Myself Andrew Turner.

ASSISTANT: Ok, please wait for a while.

USER: Ok. I will wait.

ASSISTANT: We regret to say that, there is no reservation found on your name in our records.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.