I don't have some false hope for those that lose someone. I give the same consolation that any unreligious people have, the same consolation that JW's will often give to "worldly" relatives who have lost a loved one. I offer my condolences and offer to "be there" for them. ("Being there" means different things depending on our relationship- I could help them move or lend a listening ear.)
It isn't up to me to give some religious/philosophical plan to comfort someone. There is no need to say "He's in a better place" or "We will see him again in the resurrection." Comfort, not hope is offered for the living.
Not knowing for a fact what happens at death, but being pretty sure that the dead are dead never to live again, can actually make you appreciate this life more.