biz tanışıyormuyuz damat

Thank you

damat = bridegroom

tanışmak = to meet someone for the first time, to be acquainted with each other, (as opposed to buluşmak = to meet with someone)

so this is a question asking the bridegroom

Have we met before?

Have we met before, bridegroom?

He asks the question to bridegroom.

Thanks for correcting me Gokuyum, I guess if the request said

Damatla tanışıyor muyuz? (Have we met the bridegroom before?)

then my first attempt would have been correct 

Thank you guys