Can you even call this a hotel-Undertale

Aparently, I cannot read. It stands in the title.

Honestly? I bursted out in laughter when hearing hopes and dreams. It's beautiful, just really unexpected.
I love it!

When does this song even play in-game? I know it's probably at mtt resort, but where? I've never actually played outside of a Friend's Shareplay, where i only got to being chased by Undyne. Please tell me. (;v;)