  Call centers, in which human operators attend clients using textual chat, are
very common in modern e-commerce. Training enough skilled operators who are
able to provide good service is a challenge. We suggest an algorithm and a
method to train and implement an assisting agent that provides on-line advice
to operators while they attend clients. The agent is domain-independent and can
be introduced to new domains without major efforts in design, training and
organizing structured knowledge of the professional discipline. We demonstrate
the applicability of the system in an experiment that realizes its full
life-cycle on a specific domain and analyze its capabilities.
