YOU SAID:
I plan to go to Tokyo on the 30th.
INTO JAPANESE
私は30日に東京に行く予定です。
BACK INTO ENGLISH
I will go to Tokyo on the 30th.
INTO JAPANESE
私は30日に東京に行きます。
BACK INTO ENGLISH
I will go to Tokyo on the 30th.
You've done this before, haven't you.