How many people are coming for dinner? Which of the following has a problem?

F: Star Restaurant. What can I do for you?
M: I want to book a table for 8 on Friday evening.
F: I am sorry, the tables for 8 are ail reserved. But we have two tables for 10 left.
M: OK, no problem.
F: Can I have your name, please?
M: Anderson.
F: OK, Mr Anderson. Your table is No. 14. But you must be here before 6: 30.

F: Hello, this is Harris Training Center. We bought two printers from you last week but now one of them does not print anything out. We have changed the ink, but it still doesn’t work.
M: Did you check if the computer works properly?
F: Well, the computer works perfectly.
M: Don’t worry. We’ll send a serviceman to look at that. Is tomorrow afternoon OK?
F: OK.