What's the air date of part 1 of the episode whose part 2 aired on December 2, 2007?
CREATE TABLE table_13241993_3 (
    part_1 VARCHAR,
    part_2 VARCHAR
)
SELECT part_1 FROM table_13241993_3 WHERE part_2 = "December 2, 2007"
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's the air date of part 1 of the episode whose part 2 aired on December 2, 2007? ### Input: CREATE TABLE table_13241993_3 (
    part_1 VARCHAR,
    part_2 VARCHAR
) ### Response: SELECT part_1 FROM table_13241993_3 WHERE part_2 = "December 2, 2007"