user: Question: Who directed the episode with production code 7AFF03?
Columns: ['Series #', 'Season #', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (millions)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [145.0, 1.0, '"Day 7: 8:00 a.m.– 9:00 a.m."', 'Jon Cassar', 'Howard Gordon , Joel Surnow & Michael Loceff', 'January11,2009', '7AFF01', '12.61']
SQL:

assistant: SELECT "Directed by" FROM "Table" WHERE "Production code" = '7AFF03';