C++ best way to pass a message higher in class structure

I am currently implementing a program that realizes TCP communication between PC program and external devices in QT. The problem I have is more general, but I will use this one as an example.

My class hierarchy looks like this:

            Program
           /       \
      Server_A <--> Server_B <--- External system
          |
       Sockets[]
       /        \
  Commands      Confirmations
                /     |     \
         Interf1   Interf2    Interf3

I can get a command from device (Socket), my command gets into Confirmation class, realizes any Interface job, and returns confirmation back to Socket, which sends it back to device.

The problem occurs when I want to have a command send from an external system, which I also have to confirm.

1. I get a message on Server_B and pass it to Server_A with information about: socket to send command to and command to realize.
2. I pass a command to a particular socket
3. Socket sends a command to Commands, as there is logic for an External System commands.
4. Commands prepares a message, runs logic, and sends(through socket) message to device
5. Socket waits for response
6. Socket gets the response, understands that it was a response to an external system command, and passes it back to Commands
7. Commands realizes its logic.

Here it would all be fine, but the next step is:

8. Commands need to confirm the success(or failure) to external system.

So basically, what I have to do is pass a message from Commands to Server_B this way: Commands->Socket->Server_A->Server_B. For all these classes, I would have to create an unnecessary method just to pass this one information. Is there a way to somehow solve this problem? During my programming, it often occurs that I have to pass something to the higher layer of my class structure, and it looks redundant to realize it through additional methods that only passes information further.

I have provided a sample pseudocode for this problem:

class Program
{
    ServerB serverB;
    ServerA serverA;
}

class ServerB
{
    void send(QString msg);
}

class ServerA
{
    QVector<MySocket*> sockets;
}

class MySocket
{
    Commands commands;
    Confirmations confirmations;
}

class Commands
{
    void doLogic();
    void sendToExternalSystem(QString message); //How to realize it?
}

My program is much bigger, but I hope it will give you a clue what I am trying to achieve. The simplest solution would be to add a method void sendToExternalSystem(QString message) into Sockets, Server_A and Server_B, aswell as providing a pointer for each parent during construction (commands will have access to sockets, sockets will have access to server_a, and server_a will have access to server_b)