user: Question: What was the profession of the celebrity who was featured on season 15 and finished 7th place?
Columns: ['Season', 'Celebrity', 'Notability/Profession', 'Professional partner', 'Finish']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Trista Sutter Category:Articles with hCards', 'The Bachelorette star', 'Louis van Amstel Category:Articles with hCards', '6th']
SQL:

assistant: SELECT "Notability/Profession" FROM "Table" WHERE "Season" = 15.0 AND "Finish" = '7th';