Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh

 

In the Name of Allah, the All-Merciful, the Mercy-Giving

 

All praise is due to Allah. Peace and blessings be upon His Messenger Muhammad.

 

Yes, you can ask Allah to guide a specific non-Muslim. But you need always to remember that “Indeed, you cannot guide [all] those whom you love [to Islam]. Rather, it is Allah [alone] who guides whomever He so wills. For He [alone] knows best those who are [truly] guided aright.”  (Al-Qasas 28:56)

 

Almighty Allah knows best.