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Vivien Zhao

United States

1 Reviews
3 Reads
0 Useful

1 review

Business-Tickets.com

Patient and efficent

Sergio Costa is very patient and efficient while I tried to book Korea trip. He provided different options for me to choose the best value. He is available 24/7. After I returned to USA, he sent follow up email to see how the trip went. I am extremely happy with the service from Business-Tickets.com and highly recommend Sergio Costa! Vivien

2026-06-29