When my husband tried to voice dial "mom" using "OK Google" the automatic voice response was "Who's mom?" "Mom" is in the contacts list. He gets the same response when he tries to voice dial "dad". I have the opposite problem. When voice dial "mom" or "dad" using "OK Google" the call goes through but I don't get an audible response. We got our phones at the same time and we both have Samsung Galaxy S6. Can anyone please help?