I have another question to ask you for help!

I have another question to ask you for help!
Do you provide internet access and tea/coffee maker in the room?Is there any room available on Dec,25th?
把上面句子换成I'D LIKE TO KNOW 的表达方式,如何改?哪种表达好?
I'd like to know whether there is any room available on Dec,25th or not.
I'd like to know if there is any room available on Dec,24th and you provide internet access and tea/coffee maker in the room,because of I need internet for work.

这样如何?上网的重要性单独一句,强调、句子也更顺畅.
I'd like to know if there is any room available on Dec.24th,and if you provide tea/coffee maker and internet access in the room.Internet access is important since I need it for my work.
再问： 1、一个丛句里可以用双if吗？ 2、since 和because of 有什么不用 3、如果把if换成 whether是不是后面就要加or not? 谢谢~
再答： 1、一个丛句里可以用双if吗？ 可以，并列为know的从句 2、since 和because of 有什么不用 because of 后只能更短语 3、如果把if换成 whether是不是后面就要加or not? 可以换wether，意思一样，wether后不一定要加or not
再问： 那就是说： 1）Internet access is important since I need it for my work和 Internet access is important because of I need it for my work. 意思一样？语气呢 2）I'd like to know if there is any room available on Dec. 24th和I'd like to know whether there is any room available on Dec. 24th意思一样？语气呢 3）双if并列从句时，两者之间一定要加and if 还是只用and再后面的句子就可以？ 严重感谢啦~
再答： 1）Internet access is important since I need it for my work和 Internet access is important because of I need it for my work. 意思一样？语气呢 答：because of 后不能跟句子，只能是短语，后面一句可以改成Internet access is important because of the nature of my job。 2）I'd like to know if there is any room available on Dec. 24th和I'd like to know whether there is any room available on Dec. 24th意思一样？语气呢 答：完全一样 3）双if并列从句时，两者之间一定要加and if 还是只用and再后面的句子就可以？ 答：严谨的话要加