Electronic device and system including the same

A system comprising:

• an electronic device and a server,
• wherein the electronic device is configured to:
• transmit data that includes a voice signal to the server when the voice signal is received through a user input interface of the electronic device,
• check a user account corresponding to the voice signal based on a result of processing the voice signal received from the server,
• determine whether a usage history for the user account is stored in a memory of the electronic device,
• output a preset first recommended query through a display of the electronic device when the user account does not exist or the usage history for the user account is not stored in the memory, and
• output a second recommended query corresponding to the usage history for the user account through the display when the usage history for the user account is stored in the memory,
• wherein the server is configured to:
• generate identification information for the voice signal that includes data received from the electronic device,
• determine predetermined identification information corresponding to the identification information of the voice signal from identification information mapped to user identification information corresponding to a user account, which is stored in a database of the server, and
• transmit to the electronic device the result of processing the voice signal that includes predetermined user identification information mapped to the predetermined identification information.

An operating method of an electronic device, the operating method comprising:

• checking a user account corresponding to a voice signal when the voice signal is received through a user input interface of the electronic device;
• determining whether a usage history for the user account is stored in a memory of the electronic device;
• outputting a preset first recommended query through a display of the electronic device when the user account does not exist or the usage history for the user account is not stored in the memory, and
• outputting a second recommended query corresponding to the usage history for the user account through the display when the usage history for the user account is stored in the memory.