Ferry Pula-Venezia in June

I wish to book a ferry from Pula (Croatia) to Venezia (Italy) on June, 23th.
https://www.croatiaferries.com/pula-venice-ferry.htm
Will it be available close to the date or there is no ferry on this week day?

It is unlikely there will be other dates available for this year.

If you wish, you can book ferry from one of nearby ports to Venice and take bus there from Pula.

https://www.travel-file.com/pula-buses.htm

I hope this helps..