A computer with a processor and a memory is used to set instructions for both a first component of a service and a second component of the service. The instructions include a flow of dialogs to present to requesters of the service to obtain information. Each instruction includes a dialog to present to the requesters of the service to obtain information. The first component of the service is provided via a first user interface over a first communication channel using a first communication mode. The second component of the service is provided via a second user interface over a second communication channel using a second communication mode. The first component of the service and the second component of the service are provided continuously in a single session in accordance with the instructions using a common rule set of the instructions.