BNGetFriendInfo issue

[Sythalin]

-- get number of online friends
local _,num=BNGetNumFriends()

-- cycle through friends to find "Bob"
for i=1,num do
    local id,name=BNGetFriendInfo(i)
    if (name=="Bob") then
        BNSendWhisper(id, "Hi Bob!")
    else
        print("Bob is not online.")
    end
end

Even if Bob is online, it never sends him the message and goes to "Bob is not online." Any ideas?