How to add multiple lines response in chatterbot?

[killerrex]

Well, as I said, the code I posted expects a format from the input file more or less like:

• Each entry will start by a character different to white space
  
• Any line that starts with white space will be concatenated to the previous one
  

So you need to format your input files following this rules (you can -and shall- improve them, your input, your rules... make them practical for you) but if I format your example:

Output:
What are some common warning signs of stress and/or depression in men?
General signs of stress:
  Fast heart rate
  Muscle tension
  Increase in blood pressure
  Tense stomach
Long-term signs of stress:
  Frequent cold or flu
  Headaches
  Trouble sleeping
  Skin problems
  Digestion problems
  Poor concentration
  Negative thoughts
  Speech problems
  Anxiety
  Irritability
  Feelings of helplessness
  Poor eating
  Being accident prone
  Aggression.

Notice the blanks indenting the text
The array conv will have only 3 lines.