On the 17th call I spoke with a Miss "Blank" who was most pleasant and accommodating. However. she informed me it would not be possible to assign an appointment date until after the first of May. I told her that inasmuch as it will be necessary for me to obtain visas that date would be too late. Finally. she said she would be able to squeeze us in on April 24--4 weeks and 1 day after my call. I wish in no way to be critical of Miss "Blank" who as I have indicated was most cordial and tried to be as helpful as possible.