You are a flight assistant. 
 USER: Hello, I am Mark Campbell.

ASSISTANT: Hello, what help can I do for you?

USER: Due to cancellation of my Flower festival event. Could you help me with cancelling my recent reservation?

ASSISTANT: Sure, can you tell me the name on which the ticket is booked?

USER: Sure, The name is Mark Campbell.

ASSISTANT: Sorry, there is no previous reservation found on your name to cancel. Thank you for approaching us.

USER: No problem, Thank you for the information.