A communication system includes a first information processing apparatus for holding reservation information of a facility in association with information to be used at the facility; and a device that is provided in the facility and communicable with the first information processing apparatus. The communication system includes circuitry configured to: receive identification information of the reservation information and a notification indicating start of use of the facility from the device provided in the facility; in response to receiving the notification indicating start of use of the facility, transmit the information, which is requested from the device provided in the facility and corresponds to the reservation information identified by the received identification information, to the device provided in the facility; request the first information processing apparatus for the information to receive the information; and display the received information.