user: Question: What was the original title of 3.19?
Columns: ['#', 'Original title', 'Directed by', 'Written by', 'Original airdate', 'Production code']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['3–1', '"Leavin\' on a Jet Plane"', 'Delyth Thomas', 'Mary Morris', '12February2004', '3.1']
SQL:

assistant: SELECT "Original title" FROM "Table" WHERE "Production code" = '3.19';