Dialogue apparatus, method and non-transitory computer readable medium

A dialogue method comprising:

• designating one database from among a plurality of databases;
• acquiring text information input by a user;
• extracting a search keyword required for search from the text information;
• searching the designated database and another database which is included in the plurality of databases and which is other than the designated database, by using the search keyword;
• generating a response in accordance with a first number of hit items, which is a number of data items matching the search keyword in the designated database, and a second number of hit items, which is a number of data items matching the search keyword in said another database;
• and
• outputting the generated response to the user, wherein
• when the first number of hit items is zero and the second number of hit items is one or more, the method generates a response requesting a database different from the designated database.

A non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a method comprising:

• designating one database from among a plurality of databases;
• acquiring text information input by a user;
• extracting a search keyword required for search from the text information;
• searching the designated database and another database which is included in the plurality of databases and which is other than the designated database, by using the search keyword;
• generating a response in accordance with a first number of hit items, which is a number of data items matching the search keyword in the designated database, and a second number of hit items, which is a number of data items matching the search keyword in said another database;
• and
• outputting the generated response to the user, wherein
• when the first number of hit items is zero and the second number of hit items is one or more, the method generates a response requesting a database different from the designated database.