public static void DeleteEvent(string calendarId, string eventId)
 {
     try
     {
         CronofyAccountRequest(() => { AccountClient.DeleteEvent(calendarId, eventId); });
         LogHelper.Log(String.Format("DeleteEvent success - calendarId=`{0}` - eventId=`{1}`", calendarId, eventId));
     }
     catch (CronofyException)
     {
         LogHelper.Log(String.Format("DeleteEvent failure - calendarId=`{0}` - eventId=`{1}`", calendarId, eventId));
     }
 }