What is the original air date of the episode directed by Paul Marcus?
CREATE TABLE table_15026994_3 (
    original_air_date VARCHAR,
    director VARCHAR
)
SELECT original_air_date FROM table_15026994_3 WHERE director = "Paul Marcus"
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 is the original air date of the episode directed by Paul Marcus? ### Input: CREATE TABLE table_15026994_3 (
    original_air_date VARCHAR,
    director VARCHAR
) ### Response: SELECT original_air_date FROM table_15026994_3 WHERE director = "Paul Marcus"