Provide suggestive booking times that prioritize "clustering" calls so that reps don't have big gaps in their call schedule.

Example:

• Charles likes to take 15-minute calls back to back. No buffer.
• Tony books the first 15-minute call at 9:30am.
• Bruce goes to book a call and instead of getting to pick from any 15-minute slot in the entire day, is first recommended to book a call at 9:45am or 10:00am. If neither of those times work, there is a “show more times” button to give Bruce all the options.