Communication server device, communication control method, and program

A communication server device that mediates real-time chat information transmitted and received between a plurality of communication terminals, the communication server device comprising:

• a first storage unit that updates and stores, in a first memory, communication information transmitted or received between the plurality of communication terminals in association with information indicating the transmission or reception time during the real-time chat;
• a second storage unit that updates and stores, in a second memory, a duration since the communication information of the real-time chat was stored in the first memory;
• a processor;
• and
• a storage medium having computer program instructions stored thereon, when executed by the processor, perform to present, based on the duration updated and stored in the second memory, interruption information regarding intention to end the real-time chat to the plurality of communication terminals in response to receiving a request to end the real-time chat from at least one of the plurality of communication terminals,
• wherein the request to end the real-time chat is determined based on a ratio between a number of character strings and a number of character stamps during the real-time chat.