UserWarning missing font when using long dash

Whenever the user uses a function that adds text to a plot, say xlabel(), and utilises the long dash symbol then the user is being shown a warning regarding missing fonts.

I am not sure whether this is a Matplotlib, jupyter notebook or miniconda error.
Error log: “C:\Users\root\AppData\Local\miniconda3\envs\datascience\Lib\site-packages\IPython\core\ UserWarning: Glyph 11834 (\N{TWO-EM DASH}) missing from current font.
fig.canvas.print_figure(bytes_io, **kw)”