let us make the girl called "Lucy" (short in L) and the boy named "Bob" (B)
L:hi,bob,how is it going?
B:well,um..Lucy,are you free this Sunday?
L:well,i guess so,so ,what's up?
B:well,basically,i know there will be a concert at city music hall..
L:so can i think that you are invinting me to the concert?
B:well of course,i mean,if you are free.i really need someone to accompany me.
L:then why don't you ask someone like Fred?
B:oh,please,you won't go to the concert with a girl either,right?and what special is that "ROCK" will also be presenting on the concert,are they your favorite band?
L:yes,how do you know that?well,i am actually quite free this sunday.
B:well so let us make teh meeting place outside the school library and at six?
L:ok,see you then