Yes, just rewording is enough in this case. It will fail if it tries to be clever with the code interpreter as mentioned.

I used:

"Extract the important dates and times from this pdf in Swedish"

[..]

"Great now generate the content of an ics formatted file, just the text, with the schedule above"

[..]

"Now use the code interpreter to create a file with the above content then save the file as an .ics extension"