Who is the customer with an order shipped on March 5, 2013, in the eastern region?
Who is the customer refers to Customer Name; shipped on March 5, 2013 refers to "Ship Date" = '2013-03-05'; eastern region refers to Region = 'East'
SELECT DISTINCT T2.`Customer Name` FROM east_superstore AS T1 INNER JOIN people AS T2 ON T1.`Customer ID` = T2.`Customer ID` WHERE T1.`Ship Date` = '2013-03-05'