public class Boite : MonoBehaviour
{
    public bool hasClient;

    // Client data
    public SessionType desiredSessionType;
    public Attribute desiredAttribute;
    public int desiredHostessCount;
    public float desiredSessionTime;

    // Session data
    public List<Hostess> currentHostesses = new List<Hostess>();
    public SessionType currentSessionType;
    public float currentSatisfaction;
    public float currentSessionTime;

    private void Update()
    {
        if (hasClient)
        {
            float score = 0;

            // Client is unhappy if count does not match.
            if (currentHostesses.Count != desiredHostessCount)
            {
                score -= 5;
            }

            // Client is unhappy if session does not match.
            if (desiredSessionType != currentSessionType)
            {
                score -= 3;
            }

            // Client is happy or unhappy based on attributes and skill.
            for (int i = 0; i < currentHostesses.Count; i++)
            {
                Hostess hostess  = currentHostesses[i];
                if (hostess.Attribute == desiredAttribute)
                {
                    score += 5;
                }

                // Other stuff like hostess skill and such
            }

            // Add the score to the satisfaction of the client each frame.
            currentSatisfaction += score * Time.deltaTime;

            // End session when time is up
            currentSessionTime += Time.deltaTime;
            if (currentSessionTime > desiredSessionTime)
            {
                EndSession();
            }
        }
        else
        {
            // Add a timer for the spawn of a client or something
            GenerateNewClientAndStartSession();
        }
    }

    private void GenerateNewClientAndStartSession()
    {
        hasClient = true;
        currentSessionTime = 0;
        currentSatisfaction = 0;

        // Random stuff
        desiredHostessCount = Random.Range(1,2);
        desiredSessionTime = Random.Range(1,3) * 15;

        // 6 is the number of session types. This will pick a random one
        desiredSessionType = (SessionType)Random.Range(0, 6);

        // Same, 10 is the number of attributes
        desiredAttribute = (Attribute)Random.Range(0, 10);

        // Generate other stuff like appearance
    }

    private void EndSession()
    {
        hasClient = false;

        // Do score stuff
    }
}