Hello John,
I hope you are doing great. As you know  
this
 summer I will go to  Switzerland for three weeks. To be more specific I will stay in Geneva. Because of my plans, I have  a big request for you. Can you look after my house during my absence? I know I am asking for much but it is very important for me. If you agree I promise I will buy you the best souvenir available in Switzerland. 
My house is very small, there is a kitchen bedroom, bathroom and living room. My precious flowers in the living room are crucial to me, it is very important to water them. In my house the air is very dry, so you have to do Linking Words
this
 every day. I know it can be difficult but as I said, it's very important.
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One
 again, I believe you will agree and to be honest you are my only and Correct your spelling
Once
last
 hope. I looking forward to getting some information from you and obviously seeing you as soon as possible.
Best wishes.Linking Words