Hello, I am a student from Mauritius going to Nanjing for my first year on the 30th this August. I planned to spend 5-6 days in Shanghai before moving to Nanjing. Can you direct me on where and when I can book tickets to Nanjing the most convenient way? I must imperatively reach my university before the 3rd of August. I am currently in an hotel along Siping Road, Shanghai.