Read the first unit of the student handbook and edit a dialogue in groups to introduce each other's basic information. The following information is required: 1. Different types of greeting; 2. Set the situation according to the lecture notes, and introduce the personal information, hobbies, jobs, etc. of both parties (the situation may not be limited to hotels); 3. Dialogue requires uploading in writing; 4. The dialogue shall not be less than 30 sentences and the number of words shall not be less than 300 words.