user: Question: On what date did the Democratic governor that had Wallace Crossley as lieutenant governor take office?
Columns: ['Governor', 'Took office', 'Left office', 'Party', 'Lieutenant Governor', 'Terms']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Alexander McNair', 'September 18, 1820', 'November 15, 1824', 'Democratic-Republican', 'William Henry Ashley', '1']
SQL:

assistant: SELECT "Took office" FROM "Table" WHERE "Party" = 'Democratic' AND "Lieutenant Governor" = 'Wallace Crossley';