//remove bookings if required
private void removeBookings()
{
StaffDB staffdb = new StaffDB(db);
int count = staffdb.countStaff(staff[stafflist.SelectedIndex].Forename);
if (count <= 2) // if there will be less than two staff remove the bookings
{
int deleted = staffdb.DeleteDates(staff[stafflist.SelectedIndex].Forename);
MessageBox.Show($"{deleted} Bookings temporarly removed due to the removal of the staff member, add another staff member to get these bookings back, check by-date to view bookings removed");
}
}