You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I just want to cancel my recent reservation, due to my exams has been cancelled. Can you please assist me with cancellation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Larry Williams.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, No reservation was found on your given name in our database.

USER: That's Ok, thanks for your help.

ASSISTANT: Ok, Thank you for choosing us.