I'm looking for a combination of 3 different words/phrases - one for every scenario described below.
- The person is waiting in the queue.
- The person is NOT waiting in the queue, but they could join the queue.
- The person is NOT waiting in the queue and they can NOT join the queue. This could be the case for a multitude of reasons, such as the queue already being full or it being closed for the time being.
These words/phrases will be used in a technical context for describing 3 mutually exclusive and collectively exhaustive states.