In this paper we present a new human-centered requirements elicitation methodology that effectively considers end-user's desire, behavioral and environmental contexts. We follow a methodology that uses a computationally rich definition of situation as a 3-tuple where d denotes human desire, A denotes the action vector, and E denotes the environment context vector. The proposed method of human-centered requirements elicitation is based on the situation -- transition structure which is a directed weighted graph that represents transition from one situation to another. We illustrate the proposed methodology through some case studies with open access data sets. Requirements thus elicited appear to be valid after manual inspection. Future directions along this line of research are then asserted.