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_94 ( area_served VARCHAR, frequency VARCHAR, on_air_id VARCHAR )

### Question ###
what Area has the frequency of 100.3 and an On-air ID of yass fm?

### Accurate SQL ###

SELECT area_served FROM table_name_94 WHERE frequency = "100.3" AND on_air_id = "yass fm"