Hi Vered.
This is dependent on agreements. If playing Crawling Stayman (very similar to Garbage Stayman), I would respond 2
and pass either 2
or 2
. If, however, partner bid 2
then I would rebid 2
showing a weak hand with both majors. It is a Pass-or-Correct bid, asking opener to pass with three hearts and pull to 2
with only two hearts and three spades. It assumes (usually) that we will play a 4-3 "fit" at the two level.
If not playing Crawling Stayman, transfer to one of your majors and pass.
Although Crawling Stayman is a common treatment, it does need to be discussed and agreed. Garbage Stayman is a little different since you intend to pass any response from opener. It requires no discussion.