I should be able to completely control my phone with voice and ask it to do anything it is capable of and it should just work:
"Hi Siri, can you message Katrina on WhatsApp that Judy is staying 11-15th Feb and add it to the shared Calendar, confirm with me the message to Kat and the Calendar start and end times and message."
"Hi Siri, can you message Katrina on WhatsApp that Judy is staying 11-15th Feb and add it to the shared Calendar, confirm with me the message to Kat and the Calendar start and end times and message."