Finding Values in one random list, highlighting, and labeling based on a known list

vlookup with a false will only return exact values same as index/match with 0 option

is the phone number in sheet calls at all

I have added in cell G a number and H
=INDEX('Phone book'!$A$2:$A$10, MATCH(G2, 'Phone book'!$B$2:$B$10, 0))
a lookup using index match

see attached