You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please assist me to cancel my active reservation unfortunately as my exams was cancelled?

ASSISTANT: Sure, I am here to help you. May I know on whose name the ticket has been booked formerly?

USER: Thank you for assisting me, I have reserved flight ticket on my name Larry Williams.

ASSISTANT: Sorry Larry Williams, there are no flights reserved on your given name formerly.

USER: Ok, no problem in that, anyway thank you so much.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.