There was a slight unpleasantness with the merchant's customer service when making the reservation, as I had booked a guided tour of the Longmen Grottoes, but the merchant's page description was incorrect and I requested a refund, which they refused. I only got a refund after contacting the platform's customer service. Because of this unpleasant experience, I didn't have high expectations for the tour. However, once inside the museum, Mr. Pei's explanation was truly dedicated, and he was a very kind person; it was clear he genuinely loved the experience. Special praise! 👍 He made up for the merchant's shortcomings! 👍