There are a variety of ways to capture dialogue sound from your talent in a wide shot. The most obvious choice is to use a lavalier microphone or plant (hide) a microphone in the shot near the actors. But another option that may give you better sound is to use a boom or shotgun microphone in the frame and then composite the microphone out for the final shot. Here’s one way to do that using Premiere Pro CC 2015.
If you are using an earlier version of Premiere Pro, you can do the exact same thing using a Garbage Matte effect instead of the Opacity effect we show here. The only difference is that the Opacity effect gives you a few more options such as feathering the edge of the mask/matte to make the effect even smoother.