What is the original air date of the episode with a production code of 105? 
CREATE TABLE table_22815870_1 (original_air_date VARCHAR, prod_code VARCHAR)
SELECT original_air_date FROM table_22815870_1 WHERE prod_code = 105
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_22815870_1 (original_air_date VARCHAR, prod_code VARCHAR) Question: What is the original air date of the episode with a production code of 105?  [/INST] SELECT original_air_date FROM table_22815870_1 WHERE prod_code = 105 </s>