CREATE TABLE table_1294 ("Airline" TEXT, "ICAO" TEXT, "IATA" TEXT, "Callsign" TEXT, "Commenced operations" FLOAT, "Fleet size" FLOAT, "Headquarters" TEXT)

Where is the headquarters of the airline which has the ICAO code of AAU?
SELECT "Headquarters" FROM table_1294 WHERE "ICAO" = 'AAU'
SELECT "Headquarters" FROM "table_1294" WHERE "ICAO" = 'AAU'