The act of an agent communicating (service provider, social media, etc) their departure of a previously reserved service (e.g. flight check in) or place (e.g. hotel).<p>Related actions:</p><ul><li><a href="http://schema.org/CheckInAction">CheckInAction</a>: The antonym of CheckOutAction.</li><li><a href="http://schema.org/DepartAction">DepartAction</a>: Unlike DepartAction, CheckOutAction implies that the agent is informing/confirming the end of a previously reserved service.</li><li><a href="http://schema.org/CancelAction">CancelAction</a>: Unlike CancelAction, CheckOutAction implies that the agent is informing/confirming the end of a previously reserved service</li></ul>.