One cup equals $8$ fluid ounces. The following program intends to read a floating$-$point value from input, convert the value from fluid ounces to cups, and output the volume in cups, but the code contains an error. Find and fix the error.

Ex: If the input is $2\mathrm{.}0,$ then the output is:

$0\mathrm{.}250$ cups

vol$\_$ounces $=$ input$()$

vol$\_$cups $=$ vol$\_$ounces $/8$

print$($f$\text{'}\{$vol$\_$cups:$\mathrm{.}3$f$\}$ cups'$)$