I've got multiple people who have access to my calendar, and all of them need
to be able to schedule for me.  However, one of my schedulers consistently
double-books me, despite repeated requests that she not do so.  

Is there some way for me to set Outlook up so that, if she tries to schedule
a meeting during a time that is already marked Busy, Outlook will tell her
that this time is not available and refuse to let her make the appointment?

Thanks!

B