Chicken pitas with dill yogurt sauce

• 500 g (1lb) chicken breasts
• 2 tbsp olive oil
• 2 tsp smoked paprika
• 1 tsp garlic powder
• 2 tsp oregano
• 2 tsp lemon juice
• 1 tsp salt
• ½ tsp pepper

For the dill yogurt sauce

• 1 cup yogurt
• 1 tbsp Dill finely chopped
• 2 garlic cloves minced
• 1-2 tsp lemon juice
• salt and pepper to taste

To serve

• 6 pitas
• cucumber
• lettuce
• tomatoes
• red onion