Group 1 - The core message emphasizes the unity and dedication of the Heilongjiang airport staff in promoting high-quality development and building the Harbin International Aviation Hub [2] - The flash mob event aimed to celebrate Labor Day and promote the spirit of labor, craftsmanship, and patriotism among workers, creating a positive atmosphere around the importance of labor [2] - Harbin Airport is focusing on enhancing the first impression for travelers by innovating airport ambiance, activities, and services, integrating local culture into the "Four Types of Airport" construction [2] Group 2 - The event featured performances that included traditional music and songs, which resonated well with travelers, enhancing their experience at the airport [1] - Travelers expressed their appreciation for the warm and welcoming atmosphere created by the event, highlighting the hospitality of the Heilongjiang region [1] - The airport aims to improve passenger satisfaction through various services, including convenient transfer services and thoughtful assistance for travelers [2]