'stretch of talk' is correct and is used in written English.
It is usually used to refer to a series of questions, topics, or conversations that have gone on for a long time. For example: After a long stretch of talk with my friend, we decided to go out for dinner.
Prime Minister Alexis Tsipras has said Greece is in the final, critical stretch of talks with its international creditors and that he believes an interim deal will be in place by 9 May.
Iran and the powers are in the last stretch of talks to reach a final agreement to end a more than 12-year standoff over Iran's nuclear program.
Rezaian's trial overlaps with the final stretch of talks between Iran and world powers over Tehran's nuclear aspirations leading to speculation that the journalist is being used as a pawn in an internal power struggle between reformists and hardliners that oppose negotiations with the United States.
Long stretches of talk about events of pitiful meaninglessness are followed by longer stretches of talk about life's meaninglessness itself.
On Friday I spent my time in alternate stretches of talk with the men on deck and the officers in the wardroom.
Gone are the long stretches of talk common to Forsythe pieces, and even the extravagant rock concert lighting is toned down to a gray-white cool.
To avoid long stretches of talking heads (even though the camera work during the interviews is very effective), we did a lot of B-roll of Mark and me in daily activities.
John Kerry, the US secretary of state – in Lausanne for the final stretch of those talks – pointedly refused to take questions on the Israeli election result.
It's not too much of a stretch to talk about ill-advised texts alongside other self-destructive behaviors.
