How can I attach agents to a specific chat so that they respond to clients via api?

[happyDuke96]

Hello friends, I need help, let me first explain what I want, I create an acc with the help of api and create users for it, then I created an inbox, I received a script, then I created a contact at the end, I created conversations, I attached the agent to this conversations, then the above script-from created html but there in the widget I see new conversations send a message as a client, but this client is answered by the administrator and not by the agent, and this is another conversations