How to explain no-return offer in interview?

You did great in your actual internship, and that's why you got a chance to interview for the full time role. I would be up front: say you had a great time and were reviewed favorably at the internship. On the day of the interview, you made a few silly mistakes (whatever they were) and had a bad day. Since then, you've focused on improving those areas and feel like you are ready and much stronger as a consultant now. It shows you are willing to admit failure, learn from it, bounce back, and stay resilient. Qualities of the highest order.

Hey,

As far as I understand you are suggesting that you didn't get an offer not because of your performance in the internship, but actually due to failing the actual interview. Are you sure your interview performance was the issue? Did they tell you that your performance during the internship was above or at least according to their expectations?

If you're really sure about it, you are in a very difficult situation, because you want to sell that you're able to perform well... but simultaneously, you were not able to clear out an interview. I am definitely not going to advise you to lie about it, especially becuase I think they are going to ask directly what happened most likely, but you really need to build a very compelling argument that is bullet proof to all the different angles - something that is different between both consulting firms or locations might be some of your best options.

Best

Bruno