What is the name of the department and office location for the professor with the last name of Heffington?
select t3.dept_name, t2.prof_office from employee as t1 join professor as t2 on t1.emp_num = t2.emp_num join department as t3 on t2.dept_code = t3.dept_code where t1.emp_lname = 'Heffington'