River raise by me is correct right? What about if he raises AI on river instead of just $30 more?

PokerStars Game #5066109243: Hold'em No Limit ($0.50/$1.00) - 2006/05/27 - 04:29:04 (ET)
Table 'Aquarius' 6-max Seat #3 is the button
Seat 2: jerrybegster ($37.90 in chips)
Seat 3: andr3w321 ($149.10 in chips)
Seat 4: Schuey1981 ($148.35 in chips)
Schuey1981: posts small blind $0.50
jerrybegster: posts big blind $1
*** HOLE CARDS ***
Dealt to andr3w321 [:Js: ]
andr3w321: raises $2 to $3
Schuey1981: calls $2.50
jerrybegster: folds
*** FLOP *** [ :Jd: :Jh:]
Schuey1981: checks
andr3w321: checks
*** TURN *** [9c Jd Jh] []
Schuey1981: checks
andr3w321: bets $3
Schuey1981: raises $6 to $9
andr3w321: calls $6
*** RIVER *** [9c Jd Jh 9s] [:As:]
Schuey1981: bets $5
andr3w321: raises $15 to $20
Schuey1981: raises $30 to $50
andr3w321 ???