user: Question: What date was the away team, team Gillingham?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Chester', '1–2', 'Bradford Park Avenue', '25 November 1950']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Away team" = 'Gillingham';