bool FindSessionById ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & SearchingUserId, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & SessionId, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & FriendId, const [FOnSingleSessionResultCompleteDelegate](API\Plugins\OnlineSubsystem\Interfaces\FOnSingleSessionResultCompleteDe-) & CompletionDelegate )