"It's been an interesting conversation, but I should be going."

"The chief engineer and I have been having an interesting conversation."

We had the most interesting conversation about her own powers.

Before long, more people came along, and a little group formed, as always happened when anybody seemed to be having an interesting conversation.

It's free; you get to meet new people and have interesting conversations.

They'd had much interesting conversation then, and he now looked forward to another.

It was a most interesting conversation we had, in fact.

You were making some interesting conversation about me killing somebody just now.

This was a very interesting conversation, and he didn't want to be sent away in the middle of it.

Instead, the two of them had fallen into a long and interesting conversation.