Convert C++ struct to C# struct

I need to convert a struct to bytes so that I can send or receive it over a network.

Let's say the struct is something like below:

struct Info
{
    unsigned int Age;
    char Name[];
};

I have the equivalent struct in C# sharp which is:

[StructLayout(LayoutKind.Sequential)]
public struct Info
{
    public uint Age;
    public string Name;
};

To convert the C# struct to byte I use the this method:

    public Byte[] GetBytes(Info info)
    {
        int size = Marshal.SizeOf(info);
        byte[] arr = new byte[size];
        IntPtr ptr = Marshal.AllocHGlobal(size);

        Marshal.StructureToPtr(info, ptr, true);
        Marshal.Copy(ptr, arr, 0, size);
        Marshal.FreeHGlobal(ptr);

        return arr;
    }

And to Convert the received bytes to C++ struct I use this method:

Info GetInfo(const char* bytes)
{
    Info info;
    memcpy(&info, bytes, sizeof(info));

    return info;
}

My problem is that the Age field of the struct converts very well but the Name field never is what has been sent.

Update

I can easily convert a string to bytes using the code below and send it from c# client app to c++ server app.

        byte[] buffer = Encoding.UTF8.GetBytes(text + "\0");

so I decided to change the C# struct as below:

[StructLayout(LayoutKind.Sequential)]
public struct Info
{
    public uint Age;
    public byte[] Name;
};

but in this case the GetBytes() method crashes.