A method, implemented by a slice registration server, for dynamic reservation of network slices includes receiving a first request from a client for a network slice including one or more of networks, compute, and storage resources in one or more networks for a time period; determining availability of the network resources based on the first request and a state of the one or more networks; transmitting a response to the client based on the availability; receiving a second request from the client based on the response; and causing instantiation of the network resources and providing an acknowledgment to the client based thereon.