read_csv() unable to import dataset / is reprex same as code formatting button?

REPREX stands for REPRoducible EXample, and nothing you have posted is reproducible since we on't have access to your file, you have only posted formatted code and if that is your goal you certainly don't need to use the reprex package.

To better understand what a reprex is, please read this guide

About your specific problem, the file is called "hotel bookings.csv", not "hotel_bookings.csv", notice you are replacing the empty space by an underscore.