We thank the reviewers for their insightful comments and suggestions on our paper

We thank the reviewers for their insightful comments and suggestions on our paper. Thanks for pointing out these related papers. The (private) buyer's valuation of this product remains fixed across time. With respect to Cohen et al. (and their tricks for robustness), their modified policy gets a regret of In comparison, we do not require such assumption. We will add "Conclusion" section in the revision and in our Related work section, we will add the following w.r.t