Ａ：Honda-san. 本田 ほんだ さん。 Mr/s. Honda.
Ｂ：Hai. はい。 Yes.
11. ~san ~さん Mr/s. X
12. hai はい yes (that’s right), here you go
13. +~sensei X先生 せんせい Prof./Dr. X
~san is a title that can be attached to a given name, a family name, and even some roles. Don’t attach it to your own name or the names of people in your group when talking to outsiders.
~sensei is a title that can be attached to teachers, professors, doctors, etc. You should not use ~san to refer to your teacher.
Hai means ‘that’s right,’ ‘present’ (in roll call), or ‘here you are’ (handing something over).