public void CancelSurgery() { Console.WriteLine("Write information about SURGERY."); Console.Write("Surgery's ID: "); int surgeryID = Convert.ToInt32(Console.ReadLine()); Console.Write("Surgeon's ID: "); int surgeonID = Convert.ToInt32(Console.ReadLine()); controller.CancelSurgery(surgeryID, surgeonID); Console.WriteLine("Surgery has been canceled."); }