You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: As my exam got cancelled due to heavy storm, please help me in cancelling my reservation.

ASSISTANT: Sure, may I know your good name please?

USER: Sure, I have booked the ticket under name of Gary Robinson.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: I found reservation with your name.

USER: Ok, cancel it.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.