Draw Context diagram, level0 and level1 (if need) for the following:
The user submit her/his name to the system, the system will tell the user if he is a boy or a girl or don't know by looking up his name in database of names saved in the system. If the system answer was don't know, the system will ask the user if he is a boy or a girl the user will respond by typing the correct answer, the system will save the name and the gender(boy or girl) to the database of names. The user also can send a question asking about names that starts with a specific letter, the system will send the names with the specific letter to the user.