Ticket Dispatch: auto-retry later time slot when Halo appointment clashes

We use the Ticket Dispatch Workflow to auto-assign tickets and create Halo appointments. When Halo returns CODE:EVE01 This Appointment clashes with one or more other Appointments, the workflow currently fails and no appointment is created. We’d like Dispatch to automatically try the next suitable 30‑minute time block (or other intervals) within working hours (and only fall back to failure if no acceptable slot is available), instead of stopping on the first clash or requiring _force:true.