Camera path with user entry stops

Hi, Im looking to create a path so my camera follow it. Lets say I have some game objects on my scene, those are going to be my "nodes". User can click on this game objects and move there following the path I set, then the user will chose another "node" and move there so he can go that point and he will move on my "other path" (or same path) and so on. Can anyone help me with this or direct me to a tutorial?