[Sakura-chan]

Konnichiwa = Hello
Sayonara = So long
Itte irashai = have a safe trip
Suteki = wonderful
Oyasumi / oyasumi nasai = Good night
Itadakimasu = said before eating, not sure how to translate it
Kakkoii = "cool"
Kawaii = cute
Kowai = scary
Abunai = be careful
Yoshi = all right
Hayaku = hurry
Matte = wait
Yahari/ yappari = I thought so
Hai / ee = yes
Iie = no
Betsu ni = nothing
Mochiron = sure
EDIT :
Ohayou /ohayou gozaimasu = good morning
Konbanwa = good evening