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