-Hi Sandra, what would Yyou like to do? -Hi Sandra, what would you like to do?

-Hi, Sandra, w! What would Yyou like to do? -Hi, Sandra! What would you 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, i. It's been a long time that we don't doingsince we've exercised. Hi Michelle, I'd like to go jogging in the park. It's been a long time since we've exercised.

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. Hi, Michelle! I'd like to go jogging in the park, we haven'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., Tony? Sandra: That's a good idea, how about we take my dog, Tony?

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

Again, just some phrasing and punctuation.

Michelle: gGreat! Michelle: Great!

Michelle: gGreat! Michelle: Great!

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

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

Sandra: wWhat else will we need to bring? Sandra: What else will we need to bring?

Sandra: wWhat else will we need to bring? Sandra: What 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. Michelle: I think we'll need plenty of water, sunscreen, and our phones.

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

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

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

This sounds more natural.

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

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