You are organizing a surprise party. Describe everything you would prepare.

You requested that I arrange John's birthday party. I get a gorgeous place, in the Hotel Star. There, we lease a dance hall, where we can dine and dance all the night away.
A magnificent dinner, cooked by the chef of the hotel, will be served at 9 pm sharp. During the dinner, a musician will play the piano. After dinner, you will give to John his gift. Remember that you bought an ancien antiquarian book, and it is going to be delivered to your house. You must bring it to the hotel on the day of the party's day.
After this, the DJ will start playing, and we will dance all night.
I can arrange any last minute changes up to the day before.

you are organizing a surprise party. Describe everything you would prepare.

You requested that I arrange Jonh's birthday party. I get a gorgeous [=great] place [=venue, spot], in at the Hotel Star. There, we lease [=book, reserve] a dance hall, where we can dinner dine and dance all the night. [or "all night long"]

A magnificent [or "exquisite"] dinner cooked by the chef of the hotel will be served at 9:00 pm sharp. During the dinner, a musician will play a the piano [or "a pianist will perform"]. Afterwards, you will give [=present] to Jonh his gift. Remember that you bought an ancien used(?) book, and it will be delivered to your house. You will have to bring it to the hotel on the day of the party's day.*

After this, the D'J DJ will start to work spinning (grooves, tracks), and we will dance all night.
I can arrange any last minute changes up to until the day before.

*"...on the party's day" is grammatically correct but it sounds awkward.