The network slicing (NS) technology is currently being actively researched. One of the most important problems in the implementation of NS technology is the problem of efficient radio resources admission. Radio resources should be distributed among several slices in accordance with dynamically changing user requirements, while the key requirements for slice isolation should be met: traffic served within one slice should not adversely affect traffic served in other slices. In this paper, we investigate two scenarios for accessing radio resources in next-generation 5G/6G networks within NS technology. These scenarios consider two types of services: (i) generating streaming traffic and (ii) elastic. Services generating streaming traffic prioritize resource reservation for real-time applications to ensure consistent quality of service (QoS), while services generating elastic traffic adapt dynamically to changes in network conditions to optimize resource usage, as they usually support less time-sensitive services. We consider a 5G network with two slices: one for streaming traffic and one for elastic traffic, and two distinct interruption scenarios using key QoS metrics such as blocking and interruption probabilities. The results demonstrate the potential of combining different scenarios to achieve a balance between high-quality service requirements and flexible resource management in emerging communication systems.