What is the date that a game at the Alltel Stadium had a final score of 6-20?
CREATE TABLE table_name_48 (
    date VARCHAR,
    stadium VARCHAR,
    final_score VARCHAR
)
SELECT date FROM table_name_48 WHERE stadium = "alltel stadium" AND final_score = "6-20"
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 date that a game at the Alltel Stadium had a final score of 6-20? ### Input: CREATE TABLE table_name_48 (
    date VARCHAR,
    stadium VARCHAR,
    final_score VARCHAR
) ### Response: SELECT date FROM table_name_48 WHERE stadium = "alltel stadium" AND final_score = "6-20"