what would you do in tis situation?

Today was a very hard day. first at all I had an interview at ten am, when I was called to start with the process the interviewer said - We are looking for a warrior sales man` I said `this is me, I`m the perfect one`but the man said but you don`t have experience on sales at strees or expereince as a street sales man; and that was right I`m engeneer, So, I said it does not a problem because I have a great capacity to fit in different jobs including those where I never have worked before. but the interviewer said me: you have a wonder resume and if I continue with the process you will be rejected, I`m sorry.
In view of the fact that the gentleman was resolved I asked him how about they coontected me if I never sent my resume to them and also if they verified I didn`t have the experience. He just said I apoligize it was our error my boss didn`t see it, we sorry because you came here and wasted your time.

I said: never mind, It`s the first time it happens to me. Entreprises also make mistakes....