This paper presents a multi-agent framework based on argumentative agent technology for the automation of the workflow selection and executi on. In this framework, workflow selection is coordinated by agent interactions governed by the ru les of a dialogue game whose purpose is to evaluate the workflow's properties via argumentation. Once a workflow is selected using this process, the workflow is executed by dynamically configuring wo rkflow engines to coordinate the participating agents' workflow activities. We illustrate the ove rall framework with an example of workflow composition that allows an agent to book an appropriate ticket and rent a car.