She must have gone days or even weeks without having a single adult conversation.

I haven't had a single conversation requiring words of more than one syllable.

Kissinger later wrote that it was "the single most disastrous conversation I have ever had with any member of the press."

Their views about each other are evolving, sometimes changing in the course of a single conversation.

By the 1990s, a single conversation easily took an entire month of dailies.

Furthermore, within one individual, a mental model changes with time and even during the flow of a single conversation.

He can go from smiling to snarling in a single conversation.

It was not a wall broken easily or in a single conversation.

I have not had a single conversation with anyone or message from anyone to that effect.

So instead of a single conversation, you need to have an ongoing dialogue.