To whom it may concerns,

We'll make a trip to CHA in November, and we tried to make an online reservation but could not find any place for us to book. Do we necessarily make reservation in advance as we plan to visit on Sunday. Also, as we did a research, for Chinese, you can provdie a Chinese introduction at 11:00 if we make reservation, is that true? Look forward to your response.

Thank you
Ms. Xu