When will the exhibition be held?

W: The supervisor from our Detroit plant just called to let me know that he would like the parts he ordered for their exhibition in November to be delivered by the 25th of October. Could you make sure to have them sent out by three o’clock today?
M: Sure, but could I ask why he’s in such a hurry to receive them? The exhibition is still two weeks away,(56)and the delivery only takes three days.(57)
W: I know, but he wants to have enough time to test the materials in case there are any problems.(58)This way, he will have plenty of time to have them returned to us to be fixed.
M: I see. I will make sure to take care of it right after I straighten out the backorder for Johnson Limited.