With the development of the technologies of information and communication current, the researchers and industrialists are interested to improve the quality of the service offered to the users of the public transportation. It is essentially a question of improving the quality of the information of transport in term of access facility, availability, and efficiency and it to help the customers to move for an information system traveler, In this optics, leaning on the multi-theory Agents, our work aims at conceiving an information system traveler of assistant to the multimodal movement essentially aims at calculating the shortest route in term of cost, of time(weather) of crosses(goes through) and of comfort, to assist the travelers by using a new approach of the composition of the Web services.