SELECT T1.booking_start_date ,  T1.booking_start_date FROM Apartment_Bookings AS T1 JOIN Apartments AS T2 ON T1.apt_id  =  T2.apt_id WHERE T2.apt_type_code  =  "Duplex"
Return the booking start date and end date for the apartments that have type code "Duplex".
SELECT T1.booking_start_date , T1.booking_start_date FROM Apartment_Bookings AS T1 JOIN Apartments AS T2 ON T1.apt_id = T2.apt_id WHERE T2.apt_type_code = `` Duplex ''
select t1 . booking_start_date , t1 . booking_start_date from apartment_bookings as t1 join apartments as t2 on t1 . apt_id = t2 . apt_id where t2 . apt_type_code = value
Return the booking start date and end date for the apartments that have type code `` Duplex '' .