What date did the episode with a production code of 3x6316 originally air?
CREATE TABLE table_30299 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "U.S. viewers (million)" text
)
SELECT "Original air date" FROM table_30299 WHERE "Production code" = '3X6316'
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: What date did the episode with a production code of 3x6316 originally air? ### Input: CREATE TABLE table_30299 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "U.S. viewers (million)" text
) ### Response: SELECT "Original air date" FROM table_30299 WHERE "Production code" = '3X6316'