Who directed the episdoe veiwed by 3.24 million viewers?
CREATE TABLE table_31443 (
    "Series #" real,
    "Season #" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Viewers (million)" text
)
SELECT "Directed by" FROM table_31443 WHERE "Viewers (million)" = '3.24'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Who directed the episdoe veiwed by 3.24 million viewers? ### Input: CREATE TABLE table_31443 (
    "Series #" real,
    "Season #" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Viewers (million)" text
) ### Response: SELECT "Directed by" FROM table_31443 WHERE "Viewers (million)" = '3.24'