Asking for a favor

Can you give me suggestions on this writing?
assume It's a conversation between 2 neighbors. I want it to sound as natural as possible.
please give me any kinds of corrections or cultural notes.
thanks
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-Hi Reza
-Hi, how are you?
-Fine thanks, how are you? (this would be the more poite response) Can I ask you you do me a favor?
-Sure, what is it? what?
-I and my family My family and I are going to take a trip, would you please take care of our house?
-No problem, what should I do? (You could use the slang 'prob' but it seems odd here because these people are using slang in the rest of the conversation)
-just take care of the house, if anyone enters just call me,
that's not so likely but just to be on the safer side..., and also please sprinkle water my flowerpots
-That's fine OK, where are you going?
-We're going to Sari to stay at the beach(or seashore?) either one is ok to use for one week.
-have a good trip
-Thanks
-what time are you gonna set off?
-tomorrow morning