Because some passengers have used the airport's service for the first time, and for the first time. I think I need to help passengers to make passengers feel confident in traveling.
Because some passengers have used the airport, this is the first trip for the first time and I think I need some help passengers to make passengers feel confident on the road.
Because some passengers have used the services of this airport for the first time and travel for the first time, I think I have to help the passengers to make passengers feel confident in the journey.