I am Daehan,LEE from A.B.C university.
I would like to reserve the Diomond hall in your hostel for our farewell party next Sunday.
One of my professors will be retiring next month.
Therefore, this event is very important to us, and everything must be prepared in advance perfectly.
We have around 100 people in total.
I would like you to kindly check that you have enough seats.
Please also let me know the price for the reservation.
Thank you.
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Good!
I have corrected a few words to make it a little more polite :)