So, I need to get a gas hose from the BBQ. I was guessing that the BBQ itself was outside, so I clicked the door. However, Delphine refused to go outside because she needed to drink coffee first. I made the coffee, but then she suggested that she prefers to add milk. I tried to add milk, but then she said that it needed to be steamed first. To steam the milk, I need to use the stove. But to use the stove, I need a gas hose from the BBQ...
EDIT: Turns out that I need to use the coffee machine. I am kinda dumb.