Changing scene by pressing a key

Hiya! So I'm working on a game completely on my own. I'm not good at all with unity or coding. So my problem is that I want to stand in a cartain area and press a button, which then switches scenes to where you can buy guns (other scene). My code atm looks like this

  void OnTriggerEnter(Collider other)
         {
             if (other.gameObject.tag == "Player")
             {
                 ContinueText.text = Continue;
                 helpText.text = "";
             }
                 if (Input.GetButtonDown("Use"))
                 {
                     Application.LoadLevel("Shop");
                     Debug.Log("Loading level: Shop");
                 }

I added "Use" to the input manager aswell. Anyone knows what I can do to make it work? Atm I don't get any errors.