The most important thing is to tell the customer the truth. It's very, very important is that we need to create a trust that the customer, whenever they talk to us, they can be well assured that they can trust us into giving them the best advice and best solutions. So if you don't know anything, it doesn't matter. We just tell them the truth that we don't know. And then we tell them that we will be able to talk to him with a correct answer by doing more research at the back end or talk to my superior and also some of the people who have the same type of situations. So then the second important thing is that we need to go back about the problem and the question that they require us to answer and talk to our superior and also our colleague regarding how to solve the issue and then go back to the customer and tell them that that's how that's the best response that we are going to do.