user: ### NOW ANSWER:
Question: What is the seat number when Series 3 shows Dana Bérová?
Columns: ['Seat', 'Series 1', 'Series 2', 'Series 3', 'Series 4']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Ivan Pilný', 'Michael Rostock', 'Michael Rostock', 'Michael Rostock']
SQL:

assistant: SELECT AVG("Seat") FROM "Table" WHERE "Series 3" = 'Dana Bérová';