LINE Bot - Return Not Found Message

const reply_notfound = (req) => {
    return request({
        method: `POST`,
        uri: `${LINE_MESSAGING_API}/reply`,
        headers: LINE_HEADER,
        body: JSON.stringify({
            replyToken: req.body.events[0].replyToken,
            messages: [
                {
                    type: `text`,
                    text: 'ไม่พบหมายเลขพัสดุที่ระบุ'
                }
            ]
        })
    });
};