My aanouncement doesn't show up

HI, I just  made an announcement to rent some rooms in one  of my properties and after I finished to list it up, i read a message saying everything is up and ready and that I should start to get bookings, but when i go to check my announcement it tells me that there no any dates avalible, and it doesnt even show up if I dont enter directly from the announcement link. I  tried to check  my calendar and everything but nothing works and I'm starting to get upset.

I would be so grateful if  anybody can help me with this.