private void saveQueue(Reserva reserva)
        {
            try
            {
                JavaScriptSerializer js = new JavaScriptSerializer();
                string json = js.Serialize(reserva);
                byte[] data = Encoding.UTF8.GetBytes(json);

                HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://localhost:59131/Mensajes.svc/Mensajes");
                req.Method = "POST";
                req.ContentLength = data.Length;
                req.ContentType = "application/json";

                var reqStream = req.GetRequestStream();
                reqStream.Write(data, 0, data.Length);

                var res = (HttpWebResponse)req.GetResponse();
                StreamReader reader = new StreamReader(res.GetResponseStream());
                string horarioObtenidoJson = reader.ReadToEnd();
            }
            catch (WebException e)
            {
                HttpWebResponse resError = (HttpWebResponse)e.Response;//
                StreamReader reader2 = new StreamReader(resError.GetResponseStream());
                string resultado = reader2.ReadToEnd();
                JavaScriptSerializer js2 = new JavaScriptSerializer();
                Error error = js2.Deserialize<Error>(resultado);
                throw new FaultException<Error>(error, new FaultReason(error.Mensaje));
            }
        }
        public string registrarReserva(int codigoEspacio, int cantHoras, string fechaInicio)
        {

            Reserva reserva = new Reserva()
            {
                CodigoEspacio = codigoEspacio,
                CantidadHoras = cantHoras,
                FechaInicio = fechaInicio
            };
            try
            {

                JavaScriptSerializer js = new JavaScriptSerializer();
                string horarioJson = js.Serialize(reserva);
                byte[] data = Encoding.UTF8.GetBytes(horarioJson);

                HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://localhost:19528/Reservas.svc/Reservas");
                req.Method = "POST";
                req.ContentLength = data.Length;
                req.ContentType = "application/json";

                var reqStream = req.GetRequestStream();
                reqStream.Write(data, 0, data.Length);

                var res = (HttpWebResponse)req.GetResponse();
                StreamReader reader = new StreamReader(res.GetResponseStream());
                string horarioObtenidoJson = reader.ReadToEnd();
                return horarioObtenidoJson;
            }
            catch (WebException e)
            {
                if (e.Status == WebExceptionStatus.ConnectFailure)
                {
                    saveQueue(reserva);
                    return "La reserva registrada exitosamente";
                }
                else 
                {
                    HttpWebResponse resError = (HttpWebResponse)e.Response;//
                    StreamReader reader2 = new StreamReader(resError.GetResponseStream());
                    string resultado = reader2.ReadToEnd();
                    JavaScriptSerializer js2 = new JavaScriptSerializer();
                    Error error = js2.Deserialize<Error>(resultado);
                    throw new FaultException<Error>(error, new FaultReason(error.Mensaje));
                }
            }
        }