No access to responses objects via conversations

The response_id field is missing from the result for the item object via conversation. That is, to manage response objects that are created with conversation_id specified, you need to store response_id somewhere separately, since you cannot access response_id through conversations. I mean through these endpoints:

GET https://api.openai.com/v1/conversations/{conversation_id}/items

or

GET https://api.openai.com/v1/conversations/{conversation_id}/items/{item_id}.

However, this is now implemented on the UI in Dashboard-Logs-Conversations (on the screen). It would be desirable to have this added to the API as well

Seconding this, it’s needed to have full feature parity with the old threads system.
This, and arbitrary metadata per messsage.
Thanks!