B: OK.do you mind if I ask you a few questions
A: Not at all.go ahead.
B: OK , first.may I have your name and birth date.please?
A:Sure ,I am Helena and I was born on April 27,1981.
B:So,you just said you would attend a conference there,could you please tell me in detail what this conference is about and have you got the invitation?
A:Of course,This is an annual sales conference held by Leech company of America,and we have much business with the company ,so I was invited to the conference .
B:When do you prepare to depart ?
A:I was planning to leave for America next mouth.
B:OK,We will mark your visa finished as soon as possible.