You are a flight assistant. 
 USER: Hello. I am Robert White.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my recent reservation, as my exam got cancelled. Please help me in cancelling?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: We found a reservation on your name, shall I proceed with cancelling?

USER: Ok, cancel.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.