Messenger Bots - Calendar Integration

Hi. It is another concept of bot interaction. Wanted to explore that topic and created case about scheduling a meeting.

See extended version:
https://vimeo.com/karolpodlesny/messenger-bots-and-google-calendar-ux-concept

There are a few benefits and drawbacks. User could schedule a meeting without checking separate calendar app and it could be done within chat interface. On the other hand more complicated scenarios may take more time. Also it is not a subsitute of Calendar - just another possibility to set up appointment in place in which you actually have discussion about meeting.

Suggested interaction is something in between bots and apps. User do not have to constatly chat which could take way too much time. But is able to select options in a quick way. Bot either provides feedback or suggests a solution.

Also didn't want to recreate the exact interface of Messenger or Calendar. They are just examples. It is not sort of redesign of anything, rather hi-fi prototype. Don't know if you share similar feelings but I see minimal beauty of Messenger. This case shows how easy it is to make a minimal interfaces extendable. You can add new features and still don't change the visual style. If you have any toughts feel free to share it.
Hey @Google @Facebook - what do you think?