Given the task definition and input, reply with output. You are given a dialog between 2 or more individuals. Within the dialog, there will be clues as to the names of the speakers. You will be asked at the end of the dialog to identify the name of one of the speakers.

Speaker 1: C'mon, tell us.
Speaker 2: Yeah, is she really 20.
Speaker 3: I am not telling you guys anything.
Speaker 1: C'mon Rich, it's my birthday, let me live vicariously.
Speaker 4: Dad, you really don't want to do that.
Speaker 1: Ahh, what's a little mid-life crisis between friends?
Speaker 3: Jack, would you let it go?
Speaker 1: Look, I know what you're going through. When I turned 50 I got the Porsche. You... you got your own little speedster.
Speaker 3: Guys. Seriously, it is not like that.
Speaker 1: Tell you what, maybe one of these weekends you can borrow the car and I cou. . .
Speaker 4: Dad, I beg you not to finish that sentence.
Speaker 1: What? I'm kidding. You know I'd never let him touch the Porsche. What is the name or nickname of
Speaker 3?
Rich