Who is Phaedrus from Phaedrus and what is their importance?

Phaedrus meets Socrates outside Athens. After spending the entire morning with Lysias, a well-known rhetorician, he wants to refresh himself. He engages in walking as part of his exercise and meets Socrates who insists on hearing the speech. Both of them walk along the Ilissus river until they can rest and discuss the speech. They read the speech that further entices Socrates to provide his insights on the impact of the speech. Phaedrus considers the speech as best that has been written.