raise you bid price

My personal experience tell that you can only get response to your low price bid if you booked 4-5 months ahead. Only one month away, you have to take higher price or you do not have hotel.

By the way, Hyatt Regency on the Hudson is a nice one. But I do not think you can get it by paying lower than $100 now.

Try some other hotel, smaller ones or located far away from Manhattan if you are not going to spend too much on lodging.