I think these are all of the ending dialogues you can get in the game:
The man shoots you- Don't select any items.
"It's rather...minimal." - Select a cup and no other ingredients.
"You could have said you don't like cocoa." - Don't select cocoa powder while making something
"Cup could've been nice, but you're the barista." - Make a cocoa, but don't select the cup
"Pure milk cocoa, I see." - Cup + milk + cocoa + spoon
"Isn't that just basically tea." - Cup + water + mint leaves
"Lumpy cocoa powder? Hmm." - Cup + milk + cocoa (leave out the spoon)
"The whipped cream always makes a mess for me." - Add whipped cream in your cocoa
"I see the kettle went to waste." - Cup + milk + cocoa + spoon + water