\documentclass[a4paper,12pt]{report}

\usepackage{
  ctable
}

\begin{document}

This is a line of text to highlight the text width of this page
(allowing me to compare the table width to the text width. This is a
line of text to highlight the text width of this page (allowing me to
compare the table width to the text width.


\ctable[
   maxwidth=\textwidth,
   caption = {
%
Bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah bleah.
%
}, botcap,
]{ll}{}{                   \FL
%%
Hello & Mum                \NN
How   & Are                \ML
You   & Doing              \NN
To    & Day?               \LL
}


\end{document}