user: Question: What is the air date of the episode with the production code 6ACX19? 
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [111.0, 1.0, '" Love, Blactually "', 'Cyndi Tang', 'Mike Henry', 'September28,2008', '6ACX03', '9.20']
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "Production code" = '6ACX19';