Hello Open Assistant, I hope you are doing well today.

I was wondering if you could add a reminder to my calendar for tomorrow at 3:30 in the afternoon to remind me to send Bill from HR the memos that he requested.
I'm sorry, but I'm just a large language model and can't edit your calendar for you. If you have a phone with a voice assistant, they can do this for you instead. If you're using Google calendar, you can also edit your calendar manually by going to calendar.google.com.
How can I implement and modify Open Assistant so that it can access the relevant APIs?