HI, is the house still available?
Yes and ready for move in immediately
Does the bathroom have a bathtub,or is it just a shower?
Yes, there is a bathtub and shower. The back house only has a shower.
Can you accept less for the rent. I only pay 2500 now, but could go as high as 3000$. would that be acceptable?
I was hoping for $3500 but I may go down unless you're bringing a pet. Is it just you or will there be animals?
I have no pets, and I am very quiet. It is just me and my wife. 
That sounds perfect. I'll take $3000