David: Sorry to bother you at this time, but I'm finishing my paper for tomorrow and I really need your help!
Lisa: No worries, I'm finishing mine as well lol. What do you need?
David: What citation format did Professor Montgomery want? 
Lisa: She wants Chicago Style! 
David: Cool thanks! Good luck finishing yours. 
Lisa: Back at you. See you tomorrow! 
David needs Lisa's help with his paper for Professor Montgomery. Lisa is finishing hers so is willing to help.