Dear ,
Iwanttointroducetoyouthebearerofthisletter,myyoungersister,.Sheisgoingtotakeone-monthtrainingin University.Sheisalivelyandlovelygirl,whomIamsureyouwillliketomakefriendswith.
Butsinceitisthefirsttimeshegoestoastrangecity,Iamalittleworried.Iwouldbeeversoobligedifyouwouldbesokindastomeetherattherailwaystationandacpanyherto Universitytoregisterforthecourse.Shewillhavenoproblemwithheracmodation.Ihopeitwillnotcauseanyinconvenienceforyou.Bytheway,mysister’smobilephonenumberis.
Thanksverymuch.
Sincerelyyours,