what does this chaos mean?

i am ready for help i went to my university yesterday for getting my certificates.i was hungry.so i was going to a restaurent ,someone touhes my hand..i looked back.that was an old lady..she said to me...she is new here..her husband will come to get her.also she don't know the language...she is speaking in english.she shows me her mobile ,no charge in it.the charge bar is blinking in it......i got the problem...i asked her ...so do you want a phone? i think this is not the right question.do you need a phone ,is right?..she replied me yes..then i gave my phone to her ,she called her husband..told the correct place where she is waiting..afterthat she said to me thanks..i said its all right.she gave me money..but i didn't accept it.....finally i said you are always welcome... plz correct my notebook

please help me with this say,tell &ask..what s the difference between them?