How many air dates are there for production code 206?
CREATE TABLE table_270 (
    "Series no." real,
    "Season no." real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production Code" real
)
SELECT COUNT("Original air date") FROM table_270 WHERE "Production Code" = '206'
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: How many air dates are there for production code 206? ### Input: CREATE TABLE table_270 (
    "Series no." real,
    "Season no." real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production Code" real
) ### Response: SELECT COUNT("Original air date") FROM table_270 WHERE "Production Code" = '206'