Using the IRAC method, what is the issue and rule in this scenario?

Clinton Public Company Limited placed an advertisement on their web page as follows;"Anyone interested in going to the moon? We can provide this service to you at a cost of

Five million dollarsCall 800-MOON and book your flight."

Donald's dream since he was a kid is be the first in his family to go to the moon.He heard about the advertisement, via a friend and immediately logged on to Clinton's web page for further details.Donald immediately thereafter called 800-MOON and booked his trip for December 22^nd 2020, because he wanted to spend Christmas on the moon.

Donald's wife Daisy subsequently discovered what her husband planned to pursue for the Christmas holidays and is furious. She was hoping that he should use his available monies to buy her a brand new Lamborghini. She confronted him on the issue and after a few hours of arguments, he agreed to buy her the Lamborghini and forsake his much-anticipated trip to the moon.

Donald called Clinton Public Company Limited and informed them that he no longer desired to go to the moon because of unforeseen circumstances. Clinton's Customer Service Representative informed him that he had an agreement with them, because he accepted their offer when he called and booked his flight.