What is the air date when the U.S. viewers was 5.50 million?
CREATE TABLE table_17467447_1 (original_airdate VARCHAR, us_viewers__million_ VARCHAR)
SELECT original_airdate FROM table_17467447_1 WHERE us_viewers__million_ = "5.50"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_17467447_1 (original_airdate VARCHAR, us_viewers__million_ VARCHAR) Question: What is the air date when the U.S. viewers was 5.50 million? [/INST] SELECT original_airdate FROM table_17467447_1 WHERE us_viewers__million_ = "5.50" </s>