Если именно по твоему,то:
Hello!
Hi! How are you?
Fine, thanks. But the weather is rainy.
Oh, and the weather in Russia is rather cool. It is warm and sunny! But I prefer talking with you. I am waiting for the moment when you will arrive to Russia. The England's climate is rather changeable so come to us soon!
It is a realy cool idea. I wiil think about your invitation... Oh, I am sorry, I have to help my mum. I will phone soon. Buy!
Good buy!