user: Question: When was Southend United the home team?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Bournemouth', '2–2', 'Hereford United', '13 December 1975']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Home team" = 'Southend United';