What is the tie no when scunthorpe united was the away team?
CREATE TABLE table_name_6 (
    tie_no VARCHAR,
    away_team VARCHAR
)
SELECT tie_no FROM table_name_6 WHERE away_team = "scunthorpe united"
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 tie no when scunthorpe united was the away team? ### Input: CREATE TABLE table_name_6 (
    tie_no VARCHAR,
    away_team VARCHAR
) ### Response: SELECT tie_no FROM table_name_6 WHERE away_team = "scunthorpe united"