听力原文： Hello Claire, this is Elaine. I trust all is well back home. Listen, I should be back from Washington on Friday. I'm so glad this business trip is finished. It has been really stressful but I closed the deal with the company this morning, and finalized the project with a signed contract. I want to celebrate with supper and a movie. So, if you're free Saturday night, would you like to meet me at Italiano's for some pizza at 6 and then after we'll go catch Halloween House? We haven't seen a horror movie in ages. Let me know if you are available. All right, talk to you later. Why does Elaine want to celebrate?