Formal letter without “none english” expression

I have written 2 small formal letters, I linked them https://docs.google.com/document/d/1pRZcHSugAP4P8BEzkXd-CgwmAhxwzw9FrKCT1h5cW_s/edit?usp=sharing, because I don't want to be indexed by google. I want to ask a kind person to check for me, I am not sure about that is it looks professional, or the expressions are in the good context.

Could you assist me correcting the 2 letters?

Thanks for your help!

I hope is it possible but could you edit the google docs.

Thanks again.

docs.google.com/document/d/1pRZcHSugAP4P8BEzkXd-CgwmAhxwzw9FrKCT1h5cW_s