user: Question: What is the ship in the Cunard line from Liverpool 19 – 29 July?
Columns: ['Ship', 'Year', 'Dates', 'Line', 'From', 'Distance', 'Days, hours, minutes', 'Speed']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Columbia', 1830.0, '1 – 17 April', 'Black Ball Line', 'Portsmouth', 'nautical miles (km)', '15 d, 23 h', 'knots (km/h)']
SQL:

assistant: SELECT "Ship" FROM "Table" WHERE "Line" = 'Cunard' AND "From" = 'Liverpool' AND "Dates" = '19 – 29 July';