Although I had reserved my car at 16:00, I was not able to access my car until 16:30 because the previous member had returned the car 30 minutes late. She apologised, and her excuse was that there was heavy traffic. However, I had to wait in cold weather for 30 minutes. Please adjust the time period of my use from 16:30 to 20:30 instead of from 16:00 to 20:30.