I have submitted my research work for a conference in data science, after two months of review it got weak rejection. So I decided to submit it to another conference (the submission was closed so I contacted the chair asking them if it possible and they reopened the submission system for me because I have a positive record with them and multiple publication for the last ten years). The first conference is A ranked and the other is B.
Now, the first conference contacted me telling me that I can submit my work to their symposium and the paper will be appeared as normal full paper in the final indexing. My paper now is already under the review process with the B ranked conference. But, I would love to have in my records a publication with the first A ranked conference.
Can I contact the second conference again and ask them to cancel my submission? is such a thing acceptable in academia? because I am really looking to have the record with the first one. I am in my final year in the phd and will not publish anything soon because I am planing to start my thesis soon.