请大脑翻译祝您一路平安，希望不久在南京能再次见到您！

Wish you have a good journey. I hope we can meet again soon in Nanjin ~

Take care是祝您一路平安比较地道的翻译~

Wish you a pleasant trip and hope to see you soon again in Nanjin.

Wish you peace on the road, and I hope to see you next time in Nanjing!