The first sentence in the hotel: Tengo una reserva a nombre de Maria Müller. Instead of Maria Müller, simply put in your own name.
On the way to the hotel you are holding a golden tennis racket (tengo). You are travelling on the underground at night (una, from the German “U-Bahn” and “Nacht”), and in your compartment there is a deer with a washed napkin on its back (reserva, from the German “Reh” and “Serviette”); you give it an apple (a).
You take the deer into the hotel and say you have a reservation in your name. The receptionist asks whether you are that nomad from Bremen who is always thinking (nombre de, from “Nomade”, “Bremen” and the German “denkt”) – and then comes your name.