The intent in Scenario 6 is to provide, for the consumer who's expecting a technician at her door, something very much like what UPS and FedEx offer in terms of "tracking a shipment." You know, when you're anxious for a shipment, how much it helps to be able to see its progress. We want to provide the same thing for your consumer, in respect to her tech's progress. (Again, unlike Scenarios 1 through 4, this one is not yet ready, but you can expect it soon.)
Present thinking is that, after a consumer confirms her appointment (see Scenario 4), automated machinery will generate an email something like this:
Please try this link and see what kind of interface we're presently contemplating for presentation to your consumer.