英语作文一封写给Sam的信，想去加拿大旅游？

对应的英语：Dear Sam,I'm writing to let you know that I'm planning to go Canada in the near future.It would be great for me to understand your country's culture and traditions, particularly, your local custom. I'm now applying for my visa. I will let you know more details of my journey once my visa is ready.Best regards,Li Hua.