I intended to participate in a conference, I sent my abstract and it was accepted. For some reasons, I didn't go to that conference and I didn't send my final conference paper.
However, my abstract (title, authors, abstract, keywords) is shown in the published abstract book of the conference and can be easily found online.
My question, since I didn't publish that work, I want to publish that same work in a different conference now, can I use the same abstract? Or I have to change it.