What was the original air date of the episode written by michael glassberg?
CREATE TABLE table_26866299_1 (original_airdate VARCHAR, writer VARCHAR)
SELECT original_airdate FROM table_26866299_1 WHERE writer = "Michael Glassberg"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_26866299_1 (original_airdate VARCHAR, writer VARCHAR) Question: What was the original air date of the episode written by michael glassberg? [/INST] SELECT original_airdate FROM table_26866299_1 WHERE writer = "Michael Glassberg" </s>