If you are coming. You must notify me in advance, because I need to plan a tour for you. But the problem is how can I communicate with you? If you are invited to visit friends.
If you are coming to Thailand You need to let me know in advance. Because I need to plan your tour. But the problem is, I will communicate with you? If you have a friend was invited to visit it.
If you come in, you must notify me in advance. Because I have to plan to travel to you.? But the problem is that I can communicate with you?? If you have a friend invited to visit.