You are able to propose a date and time for a lesson with any tutor on the site. Here are the three different ways to schedule a lesson:
1. You can schedule a lesson directly from your chat window with a tutor by using the "Schedule" button.
2. Alternatively, you can schedule a lesson by using the "Add Lesson Proposal" button on any tutor's profile page.
3. You can also schedule a lesson by using the "Add New Lesson" button atop your lessons page: https://www.chegg.com/tutors/lessons.