JR pass weat kansai-hiroshima

Hi,

i want to purchase the jr west kansai hiroshima pass. my question is can i reserve seats and do i pay for seats extra, for reaerved and unreserved seats?

18:10
begin
NARA
Map Map Hotel Hotel Rent-a-car Rent-a-car
[35Min] Local train(JR)
JR Yamatoji Line Regional Rapid Service for OSAKA
Train timetable | Interval timetable
Fare: ¥6,480
18:45
18:49
transfer
TENNOJI
[ Arr. track No.17 / Dep. track No.18 ] Map Map Hotel Hotel Rent-a-car Rent-a-car
[16Min] Express(JR)
LTD. EXP HARUKA 46
Train timetable | Interval timetable
Seat Fee:
19:05
19:25
transfer
SHIN-OSAKA
[ Arr. track No.11 / Dep. track No.21 ] Map Map Hotel Hotel Rent-a-car Rent-a-car
[86Min] Shinkansen
SHINKANSEN NOZOMI 51
Train timetable | Interval timetable
Seat Fee:
20:51
end
HIROSHIMA
[ Arr. track No.11 ]