Crystal Reports Account transactions within 72hours

Message


     I need know how to pull just the transactions that occur within 72 hours of each other for a specific time period. The 72 hour will start with the complete date to the next arrival date.  
Start Date ______Customer ID       transaction #   Complete Date
05/08/2009            1                          1                     05/08/2009
05/09/2009            2                          2                     05/10/2009
05/10/2009            3                          3                     05/10/2009
05/11/2009            2                          4                     05/11/2009
05/11/2009            4                          5                     05/12/2009
05/12/2009            5                          6                     05/12/2009
05/13/2009            4                          7                     05/13/2009