You are a flight assistant. 
 USER: Hello, Ronald Allen here.

ASSISTANT: Hello, how can I assist 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 in your name. Shall I proceed to cancellation?

USER: Ok, cancel my reservation.

ASSISTANT: Your reservation cancelled successfully.

USER: Thank you for your service.

ASSISTANT: Thank you.