Who wrote the episode originally aired on September 29, 1999?
CREATE TABLE table_22529 (
    "Series #" text,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Prod. code" real
)
SELECT "Written by" FROM table_22529 WHERE "Original air date" = 'September 29, 1999'
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 wrote the episode originally aired on September 29, 1999? ### Input: CREATE TABLE table_22529 (
    "Series #" text,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Prod. code" real
) ### Response: SELECT "Written by" FROM table_22529 WHERE "Original air date" = 'September 29, 1999'