Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_13241993_3 (part_1 VARCHAR, part_2 VARCHAR)
### Question:
What's the air date of part 1 of the episode whose part 2 aired on December 2, 2007?
### Answer:
SELECT part_1 FROM table_13241993_3 WHERE part_2 = "December 2, 2007"