Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_6 (dates_aired VARCHAR, region_country VARCHAR)

### Question ###
What dates did the episodes air in the United States?

### Accurate SQL ###

SELECT dates_aired FROM table_name_6 WHERE region_country = "united states"