When editing addressbook.json directly, if the user wanted to move a booking from one person to another but failed to delete the original booking in the first person, the application will still launch normally without error.

Expected result: A DataLoadingException is thrown. An empty address book will be created. The following will
be logged as a warning: "Data file at " + storage.getAddressBookFilePath() + " could not be loaded." according to the developer's guide.
Actual result:

The booking appears under both persons entries but only one of it exists under the booking list. It is able to be filtered by both phone numbers attached to it.
When editing addressbook.json directly, if the user wanted to move a booking from one person to another but failed to delete the original booking in the first person, the application will still launch normally without error.
Expected result: A DataLoadingException is thrown. An empty address book will be created. The following will
be logged as a warning: "Data file at " + storage.getAddressBookFilePath() + " could not be loaded." according to the developer's guide.
Actual result:
The booking appears under both persons entries but only one of it exists under the booking list. It is able to be filtered by both phone numbers attached to it.