Look here.
They booked it for free;
/hotel/hotel_list.asp？ t 1 = 20 10- 1 1-23。 T2 = 20 10- 1 1-26 & amp； cid= 189。 p 1=0。 p2=0
They are free self-booking, just choose the right hotel to place an order.
Most of my business trips are booked free of charge from this website.