Stating your position
What we're looking for is ...
We'd like ...
We wouldn't want to ...
We were hoping for ...
Bargaining
We'll ... if you ...
We might be able to make an exception if you ...
We're prepared to ... providing you ...
If you ..., we could ...
Saying "NO"
I'm afraid we couldn't accept ...
That really isn't acceptable.
We have no room for manoeuvre on this.
That really is your bottom line.
Saying "YES"
I can agree to that.
It's a deal.
Yes, we'd go along with that.
To avoid deadlock
Let's not be hasty about this.
Perhaps we van came back to this point later.
Price isn't everything. I'm sure there are other areas we can explore.
Summarising
Just to make sure we understand each other, ...
So, we've agreed to ... and you've agreed to ...
So, let me summarise ...