user: Question: Which department has Guy-Dominique Kennel as president since 2008?
Columns: ['Number', 'Départment (or collectivity)', 'Président', 'Party', 'Since']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['01', 'Ain', 'Rachel Mazuir', 'Socialist Party', 2008.0]
SQL:

assistant: SELECT "Départment (or collectivity)" FROM "Table" WHERE "Since" = 2008.0 AND "Président" = 'Guy-Dominique Kennel';