Don't worry too much about this...it is likely he/she is busy and may have his/her own staff to book the ticket etc...I invited Xiaodong ys ago and he was very responsive for the first letter and then he essentially disappeared. Boy, I was ready to cancel it:)))...speakers tend not to let students down...Xiaodong literally told me he would have not gone to my school if it were not invited by a student, he is just too busy even for top schools only... That said, if something happened like P said, nothing you can do about it and people would understand, so take heart...
【在 n********k 的大作中提到】 : Don't worry too much about this...it is likely he/she is busy and may have : his/her own staff to book the ticket etc...I invited Xiaodong ys ago and he : was very responsive for the first letter and then he essentially : disappeared. Boy, I was ready to cancel it:)))...speakers tend not to let : students down...Xiaodong literally told me he would have not gone to my : school if it were not invited by a student, he is just too busy even for top : schools only... : That said, if something happened like P said, nothing you can do about it : and people would understand, so take heart...