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 Detention ( datetime_detention_start VARCHAR, teacher_id VARCHAR )
TABLE: CREATE TABLE Teachers ( teacher_id VARCHAR, last_name VARCHAR )

### Question ###
Find the start and end dates of detentions of teachers with last name 'Schultz'.

### Accurate SQL ###

SELECT T1.datetime_detention_start, datetime_detention_end FROM Detention AS T1 JOIN Teachers AS T2 ON T1.teacher_id = T2.teacher_id WHERE T2.last_name = "Schultz"