Simple. I will explain one by one:
*When you want to make the conversation in Cutscene, you just simply add the text there. Like ex:
when you done to decide the time and posistion of your cutscene to make the conversation, click "Continue". and then, it would appear some form in your screen contains:
- Ready
- Slow motion
- Camera Shaking
- Skip fading
- Skip widescreen
You can select all those texts. But, if you just want to make a conversation in your Cutscene, click "Ready" and type your text. I will give you ex:
+g+Bob+w+: Hi sup?
It would be...
Bob: Hi sup?*
*If you want to make some converstation in Phone, follow this steps.
- Press "Y" then click "Objectives"
- Add objectives
- Add special player objective
- Click "Talk on phone"
Choose your time and add the text afterwards. Done.
Note: If you want to make a long conversation in Phone, you can repeat those steps and make a diferent text like ex:
Hello this is James, where are you? => Objective 1
On my way, wait there. => Objective 2*
*You can make a conversation by using "Time out", you can find it on.
- Press "Y" then click "Objectives"
- Add objectives
- Add special env. objectives
- Choose "Time out"
Select your time, and press "No" when appear a question "Show this time?" or something like that.
Then add your text. Done.
Hope this helps and sorry for my bad English. 