Spaghetti with sardines

Name: Spaghetti with sardines
Ingredients: 400g spaghetti; 1 tbsp olive oil; 2 garlic cloves, crushed; pinch chilli flakes; 227g can chopped tomato; 2 cans skinless and boneless sardines in tomato sauce; 100g pitted black olives, roughly chopped; 1 tbsp capers, drained; small handful parsley, chopped