--
are you happy
--
I am hungry
are you
--
are you hungry
too

--
are you happy
--
are you hungry
too

#!/usr/bin/awk -f

/--/ {
    start=1
    matching=0
    next
}

start && $1 == search {
    matching=1
    print "--"
}

matching {
    print
}

{
    start=0
}

./search.awk -v search=are