The purpose of these interviews is to introduce you, and in many cases me, to a person of interest.
That person might be famous, but more times than not won’t be. That person might be the main interest of the interview, or it might be a purpose they are very passionate about. But regardless of the who or the what, my one hope is that by the end of the conversation, you look back and say to yourself, “That was worth my time.” Thank YOU for your interest.