Whaaa? I've not seen this behaviour although it reminds me of the lauded 'data detectors' that were available in Mac Mail ages ago. Do you need Google Now activated? What am I doing right? (Or wrong?)The author mentions Google Now a lot, but fails to mention that Google has been doing this for ages in Gmail. Every time there is a date / time mention, there's a place to instantly add it to your calendar from Gmail. Did you also know that if you have a flight confirmation in your Gmail, and you search "LAX" on Google Maps, when you tap the "LAX" pin there is your Flight Number, Time, Gate, etc?
It's a Google Now & Gmail thing. Very useful when I flew to Canada. It goes even further: my parents emailed me their flight confirmation and when they were flying, their flight status showed up in my Google Now. The same also goes for hotels, which showed up in Google Maps.
For which part? I used to be on Android a couple years ago but I don't know why that would affect either of these behaviors. Here's the only article I could find with a little bit of searching on the Gmail Flights thing: http://www.gottabemobile.com/2013/12/12/rumors-say-windows-phone-users-get-new-ui-windows-phone-9/ I discovered it during my Boston - LAX trip and had a screenshot but I can't find it anymore.