\documentclass[12pt]{article}



\begin{document}
{
\fontfamily{put}\selectfont
\begin{center}
\textbf{\Large Title of your talk}

\medskip

{\large John Smith}\\
{Affiliation, Country}

\medskip

{\large Peter Brown}\\
{Affiliation, Country}

\end{center}
}

\bigskip

Please write your abstract here.

\end{document}
