> For the complete documentation index, see [llms.txt](https://docs.datasaur.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datasaur.ai/data-studio-projects/lets-get-labeling/conversational-labeling.md). # Conversational Labeling The conversational labeling project is similar to span labeling project, allowing you to apply span labels and draw arrows as usual. See [span labeling](/data-studio-projects/lets-get-labeling/span-based.md) for more details. Unlike span labeling, conversational labeling focuses more on conversation data and includes message-level labeling. ### Apply message labels To apply a message label, click on the add (**+**) button at the top right of a message.

Select the label class you want to apply to the message.

### Change message labels To change a previously applied label, left-click the label, then select the new label class that you want to apply.

### Delete message labels To delete a message label, right-click on it and select **Delete label**.