Would it be impolite to e-mail Albert Einstein University with the following message (obviously worded more nicely):
I have interviews at Mount Sinai and Columbia on the same weekend, are you giving me an interview or not? It'd be good to know so that NYC can be one weekend.
I have interviews at Mount Sinai and Columbia on the same weekend, are you giving me an interview or not? It'd be good to know so that NYC can be one weekend.