\documentclass{article}
\usepackage{cmsa-abs}
\begin{document}

\abs Bloggs %% put speaker's surname here
\sp Jo Bloggs %% put speaker's whole name here
\au Jo Bloggs and C. O. Laborator %% list all authors here
\aff University of Western Nowhere %% give speaker's affiliation here
\ams 05Z99 %% list mathematics subject classification here

\title A Remarkable Proof %% put talk title here

\text %% put your abstract below
In this talk I will give a clever demonstration of my own brilliance and of my audience's
credulity.

I will conclude by discussing some applications of this credulity, relating to an exciting business opportunity.
\endabs

\end{document}