You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I would like to cancel my reservation as my exams cancelled, can you please help me out with that?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your name to check your reservation status?

USER: Myself Justin Young.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: We are happy to say that, we have found a reservation on your name. Shall I proceed by cancelling?

USER: Ok, please proceed.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.