For example:-
STUDENT A : You are booking into a hotel.
Elements: Book in to the hotel - you have a reservation.
Complications :-You are on your own.-You want a shower.-You want breakfast in the morning.-You have an early meeting and must not be late.
STUDENT B: You are a hotel receptionist.
Elements: -Welcome the guest.-Find them a room.
Complications:-You can't find their reservation.-You only have a double room with bath available.