Now situation Current situation

Today i made plans to meet my friend., but my friend say said to me, " tomorrow is better than today"
So i say said to her, "Yeah., But tomorrow maybe we can't meet for long time tomorrow. Are you Is that okay?"
she reply replied, "Um... how long do you can meet?"
I reply replied, "maybe... for 1hour to 2 hours"

The situation now...

Today I planned to meet my friend but she said tomorrow would be better than today.
So I said "Yes but tomorrow we may not be able to meet for long. Are you okay?"
She replied "Um... how long can you meet me for"
I said " maybe... for one or two hours"

The situation now

Today I planned to meet my friend.
But my friend said to me " tomorrow would be better than today"
So i said to her "Yeah. But maybe tomorrow we can't meet for long. Are you okay with that?"
She replied "Um... how long can you meet me?"
I replied " maybe... for 1 to 2hours"

That's how I would say. You have to remember to use past tense! Since you are tellung us this story it already happend!

Now situation (New situation?)

Today I had planned to meet my friend.  
But my friend tells me " Tomorrow would be better than today"
So i tell her "Yeah, But tomorrow we might not be able to see each other for long. Are you okay?"
She repies, "Um... how long are you available for?"
I respond " maybe... for an hour or two"

(I was wondering if you are asking if the person is alright when you say "Are you okay?" Do you mean the same as 괞찮아?) 

The current situation:

Today I planned to meet my friend, but she told me that tomorrow would be better than today

So I said, "Sure, but tomorrow we may not be able to meet for long. Are you okay with that?"

She replied, "Um... How long can we meet?"

I said, " Maybe...for one or two hours"