using Twilio.TwiML;
using Twilio.TwiML.Messaging;
using System;

class Example
{
static void Main()
{
var response = new MessagingResponse();
var message = new Message();
message.Body(“Hello World!”);
response.Append(message);
response.Redirect(url: new Uri(“https://demo.twilio.com/sms/welcome”));

Console.WriteLine(response.ToString());;