You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: In the last month I have reserved a flight ticket on my name to travel to San Francisco to celebrate my father birthday but suddenly there is an examination on the same date and our college management has informed suddenly to us. So I am unable to travel the trip which I was planned. Can you please help me in cancelling my flight ticket?

ASSISTANT: Ok, it is my job to assist you. Please wait a moment.

USER: Sure.

ASSISTANT: May I know your name to check the reservation records?

USER: My name is Mark Jones.

ASSISTANT: Ok, there is no reservation been done on your name. Please check your mails for more information.

USER: Ok, that's fine. I think it might be cancelled by my father that I have informed previously to cancel it.

ASSISTANT: Thank you for connection our agency.

USER: Thank you for your help.