The Four Platforms: Luca, Zara, Keiko, and Mateo

Four platforms stand in a row, numbered 1 to 4 from left to right. Each holds exactly one of each attribute, and no attribute repeats. Work out the full arrangement from these clues: 1. Luca is the traveler holding a day-return ticket. 2. Mateo is immediately to the left of Zara. 3. The traveler with the duffel bag is the traveler holding a group fare. 4. The traveler with the satchel is directly next to the traveler with the guitar case. 5. The traveler holding a first-class ticket is directly next to the traveler holding a day-return ticket. 6. The traveler with the satchel is Keiko. 7. Mateo is the traveler holding a first-class ticket.