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One possible version:
Dear Velinda,
Glad to hear from you. I’d like to tell you what I have planned for your Chinese study.
We can begin our Chinese class in my study at 3 pm every Tuesday during the winter holiday. The class lasts until 5 o’clock. In the class, we will practice spoken Chinese. I will teach you some beautiful Chinese songs, including popular and folk ones, which can help you learn and remember Chinese words more easily. What’s more, I’d like to introduce some Chinese festivals to you, such as the Spring Festival, the Lantern Festival and the Mid-Autumn Festival. Luckily, we will celebrate two important Chinese festivals mentioned above during this winter holiday.
I believe you can improve your Chinese and we’ll have a good time together.
Best wishes,