Text-davinci-003 Output Formatting for Calendar

I’m trying to put something together that will take a users scheduling preferences and build them a customized schedule. Ideally I would like to have the output be in a format that can be easily synced to a users Gcal.

Should the Gcal date format be relayed to OpenAI API on each prompt? Or is this something that should be fine tuned or trained into the model? I am using gpt-3.5-turbo, text-davinci-003.

If the questions I ask don’t make sense, my apologies. Quite new to this.

Also if you know of anything that takes User input and outputs a calendar style schedule please let me know! Im sure it exists but im having trouble finding

Honestly, a GPT model is probably not the best tool for this job—they demonstrated they are unreliable at implementing complex, multistep heuristics.