Question $2$: Draw level $0$ DFD diagram for Hotel Reservation system $($previous diagram$)$ based on the following scenario:

The guest provides the filled reservation form to the process for completing reservation, called reservation$/$cancelation process. This reservation information will be stored. Reservation$/$cancelation process provides the reservation information for room selection and prepares report to admin. In addition, the guest provides the filled cancelation form for enquiry, which has influence on Reservation$/$cancelation process, and down and up storages.