user: Question: What years did J. Smith Young serve as a Representative?
Columns: ['Representative', 'Years', 'State', 'Party', 'Lifespan']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Bartlett Yancey', '1813–1817', 'North Carolina', 'Democratic-Republican', '1785–1828']
SQL:

assistant: SELECT "Years" FROM "Table" WHERE "Representative" = 'J. Smith Young';