How to finish chat in mobile chat app?

I cannot find finish button in mobile Chat App. Any advice?

Follow the steps to finish online chat in mobile chat app.

  1. Being in Active messages, make a long press on the chat you want to finish

    live chat app

  2.  Tap “Finish” in the bottom of the app

    live chat app

  3. Tap “OK” to confirm that you want to finish chat

    live chat app

    Once the chat is finished it will be moved to the Archive