X: Susan will be married in June.
Y: Like that. I don't care
I'm trying to find a phrase/word that can fit in there, but it seems "like that" sound awkward to my ear. It's an expression that's said by the speaker Y to confirm that he's understand what X is talking about. However, it must have a decreased tone instead of an increased tone. Perhaps, similar to is that so, but I'm afraid that's not what I want here because it has an increased tone in my view. What is your suggestion?
Thaks in advance!