I tried sending activity as normal to this endpoint just as directed in this documentation https://learn.microsoft.com/en-us/previous-versions/azure/bot-service/rest-api/bot-framework-rest-direct-line-3-0-end-conversation?view=azure-bot-service-3.0#send-an-endofconversation-activity
But It only sends this activity as normal activity, of course the type will be endOfConversation but it has no impact, and I wanted the conversation to be ended from customer side, so it shows agent that customer ended conversation and they can clear this conversation.
What should I do?