Yes. But you have to be in the lesson for its whole duration in case the student makes it after all.

If the student contacts you and you agree to reschedule the lesson, then there is no need to wait:
1. Discuss a new date and time with the student
2. Submit the lesson rescheduling request

The rescheduling request is at your disposal up till the very end of the lesson time. The tool works exactly the same for both students and tutors and doesn't influence your Lesson Success Rate.