Dear friend!
I thank you for inviting me to visit Cuc Phuong National Park and I also feel very happy to receive your invitation. Cuc Phuong National Park is a very beautiful and interesting place. I also really like this place but since this weekend I have to go to extra classes so I can't go. I'm so sorry and I see you on another occasion we can go longer and chat more.
Best regards!
Bn thay tên mk vào nhé. Mk cảm ơn. Xin hay nhất nhé