WeChat-based services are becoming very popular among billions of users. It is now an important business strategy to provide services for users to access business systems via WeChat. However, to the best of our knowledge, currently there is no easy way to foster the development of mobile dialog services using WeChat. Lack of such mobile social messaging services prevents industry companies from succeeding in drastic market competitions (e.g., capture high customer satisfactory). In this paper, we propose a framework for providing mobile dialog services using WeChat. Using this framework, industry companies can easily provide their IT services using WeChat. There are two levels of dialog authoring: static dialogs that enable non-developers to define for offering guidance path with static texts, and dynamic dialogs that require developers to write codes to support dynamic guidance path and dynamic texts on different path nodes. This framework can serve as the bridge between users and various information and business functionalities. Finally, we also use a use case to demonstrate how this mobile dialog service can be used in supporting sports activities.