hello ?   good morning , Nathaniel . This is Leah calling from the International Student Office .   good morning .   the reason I'm calling is because Ms . Collins will not be able to call you back until next week .   oh . I had hoped she would have called me back yesterday .   she's terribly sorry about that . She had to leave the office suddenly and won't be able to return until next week . She hopes you understand .   is there someone else I can talk to ?   she asked me to call you to book an appointment with someone else today . When are you free today ?   any time after 2 pm today would be good for me .   Mr . Liu is available at 2:15 today . Will that work for you ? 