An Access database of all zipcodes is included.
The caller is asked to say the name of a state or a zipcode.
If the caller say a zipcode, the database is checked and
the caller is given the name of the city and state.
If the caller says a state, then they are asked to say the
name of a city, and are given the zipcode for the city.
In either case, if there are multiple matches, the caller
is told how many matches there are and asked if they
want to hear all of them.