<|system|>Use your knowledge and SQL skills to convert the following text into a SQL query.
Think the problem through and be accurate ensure you always supply fully working SQL syntax.

SQL Statments should be wrapped in <codestart type="sql"> and </codeend> tags.

Example output:
<codestart type="sql">SELECT * FROM table_name;</codeend>
<codestart type="sql">SELECT column_name FROM table_name WHERE column_name = 'value';</codeend><|end|><|user|>When are the birthdays of customer who are classified as 'Good Customer' status?

SQL Table Create Statement:
CREATE TABLE Customers (date_of_birth VARCHAR, customer_status_code VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT date_of_birth FROM Customers WHERE customer_status_code = 'Good Customer'</codeend><|end|>