Hello @Vasilis10. If you type in the search here, in the community center, 'new host more bookings' or something similar, you will get swaths of topics with plenty of advice.
@Matthew0 thanks for the reply. My apartments operate in the summer season hence I operate on May. @Mariana0 thanks for the reply, I hope that I will get some bookings soon. I just wanted to check if there is something extra that I did not do.