The check-in process is the procedure that travelers follow to confirm their arrival at an airport or hotel. At an airport, this typically involves presenting identification and flight information at a designated counter or kiosk. Travelers may receive a boarding pass and check in any luggage they wish to send to the aircraft. In a hotel, the check-in process usually requires guests to provide identification and a reservation confirmation. The front desk staff will then assign a room and provide a key or access card. Both processes aim to ensure a smooth and organized arrival for guests and travelers.