Single-interviewer booking is solved: send a link, the candidate picks a slot. What still eats coordinator time is everything around that. A panel of four across two time zones, where one interviewer must come before another. A hiring manager whose calendar shows free but who never takes calls on Fridays. A candidate who can only talk after work and needs to move the second round twice. Most interview scheduling software handles the first case well and hands the rest back to a person.
An agent closes that gap by working the way a good coordinator does: it reads real availability from Google Workspace or Microsoft 365, respects the soft rules people actually have, proposes options to the candidate in plain language, and renegotiates when something moves. Every booking and change is written back to Greenhouse, Lever, Workday or Bullhorn, so the ATS stays accurate.