[rules-users] Request user feedback during rules execution

Hello, I am thinking about using JBoss Rules as the mid-tier of a web application.The aim of this system is to conclude on some results based on the rules and on some data provided by the user by the web interface. The problem is that apart from the initial input, some more user information might be needed during the rules workflow. The user response might result in asserting new objects into the working memory, firing new rules etc. My question is, would it be possible to request user information as part of the RHS of a rule and 'halt' the firing of rules until this information is provided? Thanks in advance, Katerina