Who was the driver of truck no.3 on 2016/9/19? Tell the full name.
truck no. 3 refers to truck_id = 3; on 2016/9/19 refers to ship_date = '2016-09-19'; full name refers to first_name, last_name
SELECT T3.first_name, T3.last_name FROM truck AS T1 INNER JOIN shipment AS T2 ON T1.truck_id = T2.truck_id INNER JOIN driver AS T3 ON T3.driver_id = T2.driver_id WHERE T1.truck_id = '3' AND T2.ship_date = '2016-09-19'