Android based app

Hi It would be an Android based app having two kinds of user-customer and client. Customers log in to list their item and , search and select a client in its locality. It is in a flow. Client registers itself and enters his service area. After logging in, he sees request in a list . He may accept or reject the request. After acceptance, he must enter numerical values and message, thereafter, confirms request. Rejection or confirmation reaches to [login to view URL] confirmed,Customer can see contact no. of client. Hope you understood the specification. It's kind of Ola or Uber app except that the driver cannot server multiple client. But this app can do. However, UI shall not be much different.