What is the original airdate of the episode where the challenge was three overstuffed sandwiches?
CREATE TABLE table_3124 (
    "Episode Number" real,
    "Location" text,
    "Original Airdate" text,
    "Challenge Winner" text,
    "Challenge" text
)
SELECT "Original Airdate" FROM table_3124 WHERE "Challenge" = 'Three overstuffed sandwiches'
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 is the original airdate of the episode where the challenge was three overstuffed sandwiches? ### Input: CREATE TABLE table_3124 (
    "Episode Number" real,
    "Location" text,
    "Original Airdate" text,
    "Challenge Winner" text,
    "Challenge" text
) ### Response: SELECT "Original Airdate" FROM table_3124 WHERE "Challenge" = 'Three overstuffed sandwiches'