You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please let me know how may I assist 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: Sure, I am happy to help you with the ticket cancellation process.

USER: Thank you.

ASSISTANT: May I know your name to check the ticket status?

USER: Sure, I am Daniel Evans.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: I am really sorry to inform you, there is no reservation found on your name to cancel.

USER: Oh! that's ok, no problem. Thank you for your information.

ASSISTANT: You are welcome. Thank you for choosing us. Hope you will reach us in future.