You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be a help for you?

USER: As my trip cancelled which I have reserved the ticket last week. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I am delighted to help you.

USER: It's good to hear from you.

ASSISTANT: Can you please share the name on which the ticket has been booked?

USER: Sure, the ticket has been reserved on Cynthia Nelson name.

ASSISTANT: Please give me a moment, I will check the active reservations and revert back to you.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name in our database to cancel the reservation.

USER: All right, may be my brother have cancelled the reservation.

ASSISTANT: Is there anything else that I can help you?

USER: Nothing else, anyway thank you for the information.

ASSISTANT: Ok, thank you for reaching us. Have a nice day.