What aircraft was introduced in 2004 and has a retired of —?
CREATE TABLE table_name_83 (aircraft VARCHAR, retired VARCHAR, introduced VARCHAR)
SELECT aircraft FROM table_name_83 WHERE retired = "—" AND introduced = 2004
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_83 (aircraft VARCHAR, retired VARCHAR, introduced VARCHAR) Question: What aircraft was introduced in 2004 and has a retired of —? [/INST] SELECT aircraft FROM table_name_83 WHERE retired = "—" AND introduced = 2004 </s>