If the passengers are 15,505,566, what is the iata code?
CREATE TABLE table_18047346_4 (iata_code VARCHAR, passengers VARCHAR)
SELECT iata_code FROM table_18047346_4 WHERE passengers = "15,505,566"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18047346_4 (iata_code VARCHAR, passengers VARCHAR) Question: If the passengers are 15,505,566, what is the iata code? [/INST] SELECT iata_code FROM table_18047346_4 WHERE passengers = "15,505,566" </s>