I have noticed a lot of students (myself included!) misusing 对 and treating it as a blanket ‘yes’ in Chinese for all situations when it should mainly be used to confirm something.
I found this guide helpful in breaking down all of the ways to say ‘Yes’ in Mandarin, including in more professional situations. I even learned a new word: 诚然 (chéng rán) - a formal way of saying ‘Certainly’