1. A system comprising: at least one processor; and a memory storing instructions that, when executed by the at least one processor, cause the system to perform: receiving a first notification from at least one of a plurality of notification nodes, the first notification being a first particular notification for a target user; acquiring information related to the target user, wherein the information related to the target user includes one or more physical capabilities of the target user; selecting a first set of one or more notification nodes that satisfy one or more specified ranking criteria based upon the information related to the target user, wherein a first notification node of the first set of one or more notification nodes determines an identity of the target user using at least one of facial recognition or vocal recognition; transmitting the first notification to the first set of one or more selected notification nodes; and selecting a second set of one or more notification nodes based on a determination that the target user did not acknowledge the first notification on the first set of one or more selected notification nodes, wherein the one or more notification nodes of the first set are not included in the second set; and wherein a second notification node of the second set of one or more notification nodes determines an identity of a second target user using at least one of facial recognition or vocal recognition; and transmitting a second notification to the second target user, wherein the second notification is a second particular notification for the second target user.