Once overseas travelers come to a country for their visit and have to pay with a higher cost for travel conveniences, they feel they are being discriminated against; that is, they will not come back for relaxing activities. In this case, the host country would suffer from the great loss of income stemming from this non-smoke industry, whereby many people will become unemployed when tourism is perceived as contributing to economic development. To take Thailand as a shining example, this land is referred to as the paradise of traveling, moreover, it has gained significant achievement in this vital field thanks to providing all kinds of tourist services with reasonable prices for both local people and foreign ones.