Applies to: Microsoft Teams.
In Teams, you can chat with bots from a variety of your favourite apps and services.
Chat one-on-one with a bot
If you’ve already added the bot, simply choose New chat 
at the top of the app and enter the name of the bot into your To field. Then, begin chatting.
Add a bot to a chat
Where you compose messages and replies, only type “@” and then press Get bots to apply a bot to a current 1:1 or group chat.
Add a bot to a tab
To append a bot to a tab in an established chat, simply select on the 
at the top right of the app to transform it to a new tab.