Kohlhiesels Töchter

Landlord Kohlhiesel has two daughters that couldn't be more different: Liesel, the older one, is a clumsy hoyden; Gretel (Gritli), the younger, is pretty and charming. Gretel wants to marry, but her father won't allow it until Liesel has a husband. Can Xaver be persuaded to simulate some interest in her?