go form scene to scen in unity code example

Example 1: change scene unity

SceneManager.LoadScene (sceneBuildIndex:/*Put the number here*/);

Example 2: Change Level in Unity

public UnityEngine.UI.InputField sceneInputField; //Refence to your inputField

public void ChangeSceneBasedOnInputField() //Code that needs to be called
 {
      UnityEngine.SceneManagement.SceneManager.LoadScene(sceneInputField.text);  
     //This way you can type either the index of the scene or it's name
     //Will throw an error if it can`t find the scene
}