[Evolution] how to send a meeting cancellation notice with connector?

[Mike Jackson <mjj isorauta ntc nokia com>]

Hi,
 If one wishes to free up one's schedule and cancel some meetings,
how does one send a cancellation notice with a reason for cancelling?

 This is one thing that I see as important, and I can not figure out
how to do it with connector.

Thanks,
-- 
Mike