Responseletter

\documentclass{article}
\usepackage{a4wide}
\usepackage{responseletter}

\begin{document}
	
	\title{Response to the Comments of the Reviewers}
	\author{Author 1, Author 2 and Author 3}
	
	\maketitle
	
	\noindent The comments of the reviewers have been very useful....
	
	\reviewer{
		% Review prologue
		This paper presents a system for...
	}{
		% Thank the reviewer for her/his feedbacks 
	} 
	
	% Tackle each comment with an answer
	
	\comment{
		% Reviewer comment
		The biggest concern I have is... 
	}{
		% Your answer
	}
	
	\comment{Another concern that I have is... }{}
	
	% other comments of Reviewer 1
	
	\reviewer{The authors present an extension to... }{}
	
	\comment{The biggest concern I have is...}{}
	
	\comment{Another concern that I have is...}{}	
	
	% other comments and reviewers
	
\end{document}