-Hi, Sandra, w! What would Yyou like to do?

That was almost perfect, it just needed an adjustment of punctuation.

Hi, Michelle,! I'd like to go jogging in the park, it's a long timwe that we don't doing exercisven't been exercising for a long time.

I understood what you were trying to say, but it didn't sound natural.

Sandra: iThat's a good idea, how about if we take Tony, my dog.?

Again, just some phrasing and punctuation.

Michelle: gGreat!

Tony he'is very quiet , I think that He'll gothe will have a good time and be good company.

Sandra: wWhat else will we need to bring?

Just remember to capitalize the beginning of a sentence!

Michelle: I think we'll need plenty of water, sunscreen, and ours phones.

Sandra: oOh, by the way let's take some oranges and bananas.

This sounds more natural.

Michelle: okie, soOkay, let's go , the day it's beautiful.

-Hi Sandra, what would Yyou like to do?

Hi Michelle, I'd like to go jogging in the park, i. It's been a long time that we don't doingsince we've exercised.

Sandra: iThat's a good idea, how about if we take Tony, my dog., Tony?

Michelle: gGreat!

Tony he'is very quiet , I think that Hhe'll gothave a good time and be good company.

Sandra: wWhat else will we need to bring?

Michelle: I think we'll need plenty of water, sunscreen, and ours phones.

Sandra: oOh, by the way, let's take some oranges and bananas.

A more natural way to write this would be "Oh, let's take some oranges and bananas too."

Michelle: oOkie, so let's go , the day it'ss so beautiful.

"Okie" is correct, though it's usually used more in the colloquial phrase "okie dokie". "OK" is another option that is more common.