private void btnAllocate_Click(object sender, EventArgs e)
{
Booking booking = new Booking();
int eid = GetEmployeeId();
string busNumber = ddlBusNumbers.SelectedItem.ToString();
if (booking.AllocateBusForEmployee(eid, busNumber))
{
MessageBox.Show("Success!!!! Employee is now allocated a bus. Tada....");
}
}