Spicy chicken tortilla soup

Chicken second courses

1 medium Onion 3 cloves Garlic 2 tablespoon Vegetable oil 1 4-oz Chopped green chilis 1 15-oz can Mexican style stewed tomatoes 4 cups Chicken broth 1 teaspoon Lemon pepper 2 teaspoon Worcestershire Sauce 1 teaspoon Chili powder 1 teaspoon Ground cumin 1/2 teaspoon Hot pepper sauce 4 tablespoon Flour 1/2 cup Water 1 pound Boneless skinless chicken breast 1/3 cup Low fat sour cream salt and pepper 4 Corn tortillas 1/4 cup Fresh cilantro