Unfortunately Mr. X had to leave much later than planned. He has left at xx.p.m. and will therefore not arrive before midnight.
Could you please be so kind and leave a message for him at the hotel regarding when you will meet him tomorrow. You can also reach him via his cell phone: +48/xxx/xxx xxx xx
Ich würde eventuell anbieten, dass der Geschäftspartner Dir den Zeitpunkt durchgibt und Du die Nachricht im Hotel deponiert.
Could you please tell me, when you would like to meet Mr. X tomorrow? I will then forward the information to the hotel.