How to fix the problem is to provide people with the skills to speak better English and communication, we prepare more for selling tickets and enough customers who want to.
Workaround is to provide people with the skills to speak English, we communicate better and make the arrangements for ticket sales to meet customer needs and more.
The solution to the problems is to let people speaking English better, we communicate instead, and to เตรียมตั๋ว for selling more and sufficient to customer needs.