Warm Weather Fresh Watermelon And Ahi Tuna Soup

Name: Warm Weather Fresh Watermelon And Ahi Tuna Soup
Ingredients: 6 cups Seedless watermelon; 1 Heirloom tomato; 1 Shallot; Fresh Ginger; Olive oil; 2 Garlic cloves; 1 Orange; 1 tablespoon Sugar; 2 teaspoons Rice vinegar; 1 teaspoon Lemon and lime juice; Salt and pepper; 4 Ahi Tuna steaks, 3 oz. each; 1 tablespoon Flour; Garnish do finely diced Cilantro, Mint, green onion.