A rose by any other name

Someone at work called me Connie today. Several times. Which I hate. It was in an email so I couldn't correct him when it happened. And while it came from a pleasant individual and I know it was meant in a friendly way, I suspected that if I didn't say something, then all the people he had copied might start calling me Connie too! Next, it could be the whole organization. Then I might be stuck that way for the rest of my career... So I replied, saying yes, I would be happy to do whatever was needed, and signed my name (pointedly, I thought). However, the next email had another Connie in it! This time, when I signed my reply, I put Constance, not Connie. That got the message across satisfactorily, and I got two quick acknowledgements; I just hope it didn't make me seem like a prima donna...