Abstract: Interactive dialog communication via callbacks is provided by a dialog execution environment executed in response to a selection of a first user interface element in a panel execution environment. The dialog execution environment receives a first set of information including a callback method. A dialog includes a second user interface element selectable to show a second set of information. To obtain this information, the dialog execution environment sends a request for the second set of information to the panel execution environment via the callback method. The panel execution environment sends a request for the second set of information to a server and receives a response including the second set of information. The dialog execution environment receives a response including the second set of information from the panel execution environment and provides the second set of information in a user interface of the dialog.