Lua 中函数只返回一个值而非两个

function GetCharacterName(source)
  local xPlayer = QBCore.Functions.GetPlayer(source)
  local name = xPlayer.PlayerData.charinfo.lastname
  local name2 = xPlayer.PlayerData.charinfo.firstname
    if xPlayer then
     return name, name2
    end
  end

我想返回 name 和 name2 两个值，但是实际上只返回了第一个值。我是 lua 和编程方面的新手，想要学习。

函数被调用的其它地方：

   AddEventHandler("mdt:attachToCall", function(index)
   local usource = source
   local charname = GetCharacterName(usource)
   local xPlayers = QBCore.Functions.GetPlayers()
   for i= 1, #xPlayers do
       local source = xPlayers[i]
       local xPlayer = QBCore.Functions.GetPlayer(source)
       if xPlayer.PlayerData.job.name == 'police' then
           TriggerClientEvent("mdt:newCallAttach", source, index, charname)
       end
   end
   TriggerClientEvent("mdt:sendNotification", usource, "You have attached to this call.")
end)

RegisterServerEvent("mdt:performVehicleSearchInFront")
AddEventHandler("mdt:performVehicleSearchInFront", function(query)
    local usource = source
    local xPlayer = QBCore.Functions.GetPlayer(usource)
    if xPlayer.job.name == 'police' then
        exports['ghmattimysql']:execute("SELECT * FROM (SELECT * FROM `mdt_reports` ORDER BY `id` DESC LIMIT 3) sub ORDER BY `id` DESC", {}, function(reports)
            for r = 1, #reports do
                reports[r].charges = json.decode(reports[r].charges)
            end
            exports['ghmattimysql']:execute("SELECT * FROM (SELECT * FROM `mdt_warrants` ORDER BY `id` DESC LIMIT 3) sub ORDER BY `id` DESC", {}, function(warrants)
                for w = 1, #warrants do
                    warrants[w].charges = json.decode(warrants[w].charges)
                end
                exports['ghmattimysql']:execute("SELECT * FROM `player_vehicles` WHERE `plate` = @query", {
                    ['@query'] = query
                }, function(result)
                    local officer = GetCharacterName(usource)
                    TriggerClientEvent('mdt:toggleVisibilty', usource, reports, warrants, officer, xPlayer.job.name)
                    TriggerClientEvent("mdt:returnVehicleSearchInFront", usource, result, query)
                end)
            end)
        end)
    end
end)