<input name="Prs" type="submit" value="Контакт" >
...
<input name="Trans " type="submit" value="Транспорт" />

//итп

       [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Booking(OrderView ord, string Gd, string Adr, string Prs, string Trans )
...

          if (Gd != null)
                return RedirectToAction("Index", "Good", new { act = "Products", cont = "Order" });
            if (Adr != null)
                return RedirectToAction("NewAdres");
            if (Prs != null)
                return RedirectToAction("NewContact");
            if (Trans != null)
                return RedirectToAction("Transports");