Cut out the cards and divide them into “hotel cards” and “guest cards.”
On a board make a mind map of the kinds of questions guests and receptionists would ask each other.
Give a guest card to one student and a hotel card to another.
The student with the hotel card is the receptionist and must answer a ringing phone.
The student with the guest card must ask relevant questions while the receptionist must answer the questions while asking for the appropriate details.
Take notes of any structure, pronunciation, grammar and intonation problems and then address them when the exercise is over.