Hello,
It was so kind of your father to take us to andong station all that way, after taking your sister to her school.
We were very relieved when he let us know the bus which we  should take.
In addition, my friend was very glad to talk with him in Korean, because one of her purpose of this trip was speaking and listening Korean with Korean.
And we were glad to drink the tea which your mother brought for us last night.
It was the first time we drunk such uncommon tea in Japan.
please say thank to them.
Your sister was very charming.
If she likes, we can correct her Japanese on e-mail!

Thank you!!
Mieko Yoshida