It would be easier to help if we had more specific details, but it sounds like you need to describe as many examples of energy transformation as you can that could be found in a hotel. Here are some possibilities:
The elevator turns kinetic energy (movement) into potential energy (energy of position) when it goes up.
Hotels often have ice makers in the hallways. These remove heat energy from water, causing a phase change (water -> ice). When the ice melts it takes up heat energy from the surroundings and uses it to accomplish the reverse phase change.
People eating in the hotel restaurant are converting chemical energy (food) into heat and kinetic energy.
Computers are turning electricity into heat and light energy.
When a guest plugs a cell phone charger in, that converts electricity into potential energy by charging the battery.
If the hotel has a gym, guests can go there to turn potential energy in the form of body fat into heat and kinetic energy as they work out.