Which date had a site of N/A?
CREATE TABLE table_33974 (
    "Date" text,
    "Site" text,
    "Sport" text,
    "Winning team" text,
    "Series" text
)
SELECT "Date" FROM table_33974 WHERE "Site" = 'n/a'
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: Which date had a site of N/A? ### Input: CREATE TABLE table_33974 (
    "Date" text,
    "Site" text,
    "Sport" text,
    "Winning team" text,
    "Series" text
) ### Response: SELECT "Date" FROM table_33974 WHERE "Site" = 'n/a'