Create a chatbot interacting with Reactor

Reactor was made to serve each type of front-end applications, who want to handle multistep service manipulation carts. The interfaces have sophisticated data structure to minimise the API requests, like an add operation can respond with the new CurrentPortfolio state of Reactor transaction together with the update AvailableProductOfferings list. Other it is fine for many applications, others require simplified interfaces having predefined standard response structures. One example is chatbot.