What was the date of the tournament with a clay surface and an opponent of Irina Falconi?
CREATE TABLE table_64723 (
    "Date" text,
    "Tournament" text,
    "Surface" text,
    "Opponent" text,
    "Score" text
)
SELECT "Date" FROM table_64723 WHERE "Surface" = 'clay' AND "Opponent" = 'irina falconi'
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 was the date of the tournament with a clay surface and an opponent of Irina Falconi? ### Input: CREATE TABLE table_64723 (
    "Date" text,
    "Tournament" text,
    "Surface" text,
    "Opponent" text,
    "Score" text
) ### Response: SELECT "Date" FROM table_64723 WHERE "Surface" = 'clay' AND "Opponent" = 'irina falconi'