What I learnt using adobe premiere

To cut the clip to make the conversation flow, you need to right click and cut the video in desirable places

By right clicking, this list of available options appear. I wanted to delete this part of the clip therefore clicked on 'cut'.

To add a transition from clip to clip, you could chose a transition from here and drag it with your mouse to the clip.

It asked you what part of the clip you would like your transition to start and how long you wanted it to last- which it seemed to be better if it was shorted because the video appeared more consistent and flowing.

By clicking 'More' there was some advanced options that came up which where interesting to adjust and experiment with.

To add music, you simply dragged and dropped the soundtrack is the desired space.