AirBnB income is reported in Rental Properties under the Income tab, it is not reported as self-employment income.

For more information on AirBnB reporting, see this link from the CRA https://bit.ly/2U8hfz8 

Tip: You have indicated that you are using the Live & Assist version of the software. For further assistance please give them a call to walk you through the process if needed, here is how to reach them https://turbotax.community.intuit.ca/replies/3456106