software testing flow charts and flow graph PDL

I'm studying Software Testing at my university and in the book I found this example page 490 7th edition software enginnering by roger s.pressman: it's a pseudocode that i want to convert in flow chart and flow graph. the book does'nt show the whole steps of flow graph i've tryed my best to learn it check different books websites and watched different videos but didn't get steps of converting code to flow graph. i've made this flow chart and need suggustion where i'm wrong because it is totally change from flow graph of book.enter image description here