65 year old woman at work keeps jumping in when not asked?

She has been here for 10 years, I've been here for 4 years and a newcomer; 2 months. We're all audio typists. We try to help each other whenever we can't decipher the dictation. The newcomer will often ask me to help (as I used to work for her boss and I'm used to his accent on the dictation),... show more She has been here for 10 years, I've been here for 4 years and a newcomer; 2 months. We're all audio typists. We try to help each other whenever we can't decipher the dictation. The newcomer will often ask me to help (as I used to work for her boss and I'm used to his accent on the dictation), but when the newcomer calls me to see if I can understand what he's said, this 65 year old races over instead! It's like only she knows better. Then afterwards the newcomer calls me over anyway as I usually get what he's saying. Why would this 65 year old keep jumping in when it's me who's called over to the newcomer's desk?
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