I have already adjusted the text to the format RPG Maker 2k3 uses, so you just have to copy and paste the text that's here.

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Carlos
Hm?

Carlos
Oh,\| hello there,\| stranger.

Carlos
What,\| me?\|
I'm just waiting for...\| someone.

Carlos
I'm waiting her to come back.

Carlos
I'm not sure she will,\| though.\|
We've been through some\| things together,\| y'know.

Carlos
And old fool me just let her go. \|
Like sand between fingers.

Carlos
The only thing I can do is wait,\| and hope that she 
will come back one day.

Carlos
That's all I can do.

Carlos
Oh,\| look at me,\| just blabling about something a
youngster don't have any interest on.

Carlos
I'm sure you have people waiting for you.\|
I guess that's the beauty about it.

Carlos
You don't have to mind me.\|
This will be last time we will see each other.

Carlos
Goodbye.\|
And Merry Christmas.

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After that, if the PC interacts with the NPC a second time, it should just say this:

(It looks like he will be waiting.)