Sorry but your name isn’t self explanatory. Not a single letter in that name suggests an ‘air’ instead of ‘E’ sound. Accentuation is what lends a sound to a letter (or word). For example, notice the accent ague over this letter in my name which gives it the hard ‘a’ sound; á. When reading names people should apply basic English/grammar but they don’t. And in your case, they do but yours isn’t conventional. Granted, this is coming from an American teaching system. If you are from a country other than the US and have other language/name rules, you have to understand, not everyone knows those rules. They will see ‘E’ as ‘E’. If you had Erda then I could see your argument more clearly.