I have never heard of this person. Have they written books?
Yes! Just the one through. It's called Never Split the Difference. Do you read much?
I do like to read! What is this book about?
It's about applying FBI negotiation strategy to every day life. It also has cool FBI stories from his past cases. 
It sounds very interesting! Does he go into some of the well known crime cases like Madoff's ponzi scheme?
Some are well known and some are not. A fomous one he mentioned was the Dos Palmas kidnappings
I have never heard of this one. Was it in the US? Did they catch the kidnappers?
It was in the Philippines but involved US citizens. It was mishandled - after about a year they found them but it didnt go well
Wow - I love to read about crime stories! How many were kidnapped?
about 20 - 3 of which were US citizens. It was pretty mad; there are some pretty good podcasts about it