Hi Lei. i'm [이름]

first of all, i have to say thank for your help till now. as you can guess... i always have been busy during the day time(2:00 pm) to work or drive.... so i asked your manager if i can shift the schedule to early evening. and he informed me that i can get the 6:00 pm class. but the teacher will be other one. i'm so sorry that i can not hear your voice in the phone from now. including your comment, everything you gave me was very useful. and i'll try to make it. thank you again. bye Lei....

Hi [이름]!! Yeah it's sad that I won't be able to talk to you anymore. I will miss our conversations. But this is for your own good. I know that you are a very busy person and I understand the reason why you need to change your schedule. Just be confident okay and be patient okay. Thank you also for the laughs that we had during our class. Do not give your new teacher headaches okay. Ha ha ^^. I will miss you [이름]! Take care always!

Lei J

first of all, i have to say thank for your help till now.

>>First of all, I would like to say thank you for all your help.

as you can guess...

>>correct

i always have been busy during the day time(2:00 pm) to work or drive....

>>I've always been busy at around 2 PM from my work