Here is another message from the company.  How could they not have seen this coming?  They ALWAYS have lots of open trips at the beginning of the month and they always have lots of open tips around a holiday.  Duh!  Why don't learn to plan better is beyond me.  I don't think recalling more reserves is the answer.  
Subject: Holiday Staffing                                                       
                                                                                
As a result higher than forecasted open time associated                         
with the monthly transition, flight attendant coverage is                       
severely limited December 31,2007 - January 2, 2008. Any                        
flight attendant able to fly during this period is requested to                 
contact crew scheduling (800) 327-0117.                                         
                                                                                
Protecting our schedule is an absolute priority and we                          
appreciate your help in doing everything possible to ensure                     
we fulfill our commitment to our customers.