Well, it depends. Attendees are generally passive observers at an event while participants are actively engaged in the event. If it's a speaker or presentation, attendees is preferred. If it's a workshop, then I'd use participants.

>>There are no attendees for this event.
>>
>
>That's exactly what I thought after reading Mike Beane's reply. Now, which one is better - participants or attendees? We're talking about some event people are registered for.
>
>
>>>Hi everybody,
>>>
>>>This simple phrase got us stumbled for a while and we had to switch to a different word.
>>>
>>>How to say correctly:
>>>
>>>There are no attendance's for this Event.
>>>
>>>The final phrase we used is
>>>
>>>There are no Participants for this Event.
>>>
>>> BTW, I'm thinking - is FOR a correct preposition here?
>>>
>>>But how to say using "attendance" word?
>>>
>>>Thanks a lot in advance.