Question (Thai):  บุคคลที่ซื้อ HP Pavilion เป็นผู้ดำเนินการตั๋วจำนวนเท่าใด
Question (English): How many ticket ID were conducted by the person who purchased HP Pavilion?
Table: customer
Pandas: df[df['Product_Purchased'] == 'HP Pavilion'].shape[0]