What is the original air date for production code 1ark79?
CREATE TABLE table_73453 (
    "No." real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "Viewers (in millions)" text
)
SELECT "Original air date" FROM table_73453 WHERE "Production code" = '1ARK79'
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 for production code 1ark79? ### Input: CREATE TABLE table_73453 (
    "No." real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "Viewers (in millions)" text
) ### Response: SELECT "Original air date" FROM table_73453 WHERE "Production code" = '1ARK79'