If you're used to creating a 1:1 to invite someone to a person to person meeting, you can get the same result with a Booking Page - a personal link that lets one person pick a time that works for both of you.
For step by step instructions on creating a Booking Page see here: How to create a Booking Page
If you want the classic 1:1 experience of proposing just a few specific windows, use 'Does not repeat' and add each date and time range individually rather than leaving the default weekly recurring availability.
Offering more than one duration (like 30 and 45 minutes) lets your invitee pick the length that works for them, similar to giving meeting options in a 1:1.