What is the IATA code for the airport with an ICAO code of HLLS?
CREATE TABLE table_name_19 (iata VARCHAR, icao VARCHAR)
SELECT iata FROM table_name_19 WHERE icao = "hlls"
### Context: CREATE TABLE table_name_19 (iata VARCHAR, icao VARCHAR) ### Question: What is the IATA code for the airport with an ICAO code of HLLS? ### Answer: SELECT iata FROM table_name_19 WHERE icao = "hlls"