Highlight a section you want to remove and delete it with a option + backspace or replace it with a silence gap clip by pressing backspace.
You can either cut out a section or leave a gap in its place. Gap Clips are particularly useful for a guest who isn’t talking but might have some background noise. Replacing with a clip keeps the length the same. Highlight a section and press backspace for a Gap Clip, or option + backspace to delete the section.