Meaning: There were people working in the ticket booth who were helping the people who were traveling.
Choice of Words: Staffed means to have people working in a place. Aiding means to help or support someone.
Alternative Expressions
The ticket booth has staff to help passengers.
Meaning: This sentence is saying that the people who work in the ticket booth are there to make things easier for people who are buying tickets or getting on the train or bus.
Choice of Words:Ticket booth is a place where people can buy tickets to travel on a train or bus. Staff are the people who work in the booth. Help means to make things easier for someone, so help passengers means to make things easier for people who are buying tickets or getting on the train or bus.
People working in the ticket booth help passengers.
Meaning: This sentence is saying that the people who work in the ticket booth are there to make things easier for people who are buying tickets or getting on the train or bus.
Choice of Words:People are the people who work in the ticket booth. Working means doing a job, so people working means the people who are doing the job of selling tickets and helping passengers. Help means to make things easier for someone, so help passengers means to make things easier for people who are buying tickets or getting on the train or bus.