[This brunette wizard's got a smile on her face - it's small, but genuine.]

This sure seems to be the month for birthdays and parties, huh? Happy birthday, Della.

As for the three things:

1. I'm Nita Callahan, and I'm from New York. Which, doesn't always exist on other people's worlds, so that's kind of distinct.
2. I'm an older sister - you may have seen her around on the train; her name's Dairine, bright red hair. She gets that from our mom.
And 3.... I'm a wizard?

I'm not good at these, I am so sorry, but I'm glad to meet you anyway!