You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your address?

USER: I am Robert Lopez, please assist me in cancelling my ticket, due to bad weather my exams cancelled.

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation by this name.

USER: Ok.

ASSISTANT: Shall I proceed to cancellation?

USER: Proceed to cancel.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thanks for approaching us.