Iam not able to work with this page.

here is my code. Iam getting no such element is found.

WebDriver driver=new ChromeDriver();
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
driver.get("http://way2automation.com/demo.html");
//9440776233-sai santhosh jewellery
driver.findElement(By.xpath("//h2[contains(text(),'Draggable')]")).click();
//driver.findElement(By.xpath("//input[@name='name'] ")).sendKeys("Rupa");

//driver.switchTo().frame(1);
Thread.sleep(2000);
driver.findElement(By.xpath("//input[@name='name']")).sendKeys("Rupa");