user: Question: Name the date successor seated for failure to elect
Columns: ['District', 'Vacator', 'Reason for change', 'Successor', 'Date successor seated']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Indiana Territory', 'Vacant', 'failure to elect', 'Jonathan Jennings', 'Seated November 27, 1809']
SQL:

assistant: SELECT "Date successor seated" FROM "Table" WHERE "Reason for change" = 'failure to elect';