Good work! I usually use speech bubbles, but I didn't put them in the template so people could have more free flowing conversations. Not everyone has a folder of transparent speech bubbles like I do.
Your use of story here is perfect. The coffee drinker is always in a funk, usually about his home life, and the cigar guy is always his avid active listener, asking the important questions. It's nice to see he got the chance to do the punch line.