CREATE TABLE table_20582 ("Platform" FLOAT, "Frequency  ( per hour ) " FLOAT, "Destination" CLOB, "Service Pattern" CLOB, "Operator" CLOB, "Line" CLOB)

Who is the operator to destination Dalston Junction?
SELECT "Operator" FROM table_20582 WHERE "Destination" = 'Dalston Junction'
SELECT "Operator" FROM "table_20582" WHERE "Destination" = 'Dalston Junction'