ATC: Delta 323, altimeter 29.95, descend 7,000, expect vectors for ILS runway 32 approach. Contact Ottawa Approach on 125.35.
DL323: Down to 7-thou, expecting ILS for runway 32, approach on twenty five, thirty-five. Delta 323, g'day

DL323 (on Ottawa Approach): Ottawa Approach, DL323, with you, descending 7000.
Ottawa Approach: DL323, good afternoon, radar contact. altimeter 29.94.

Ottawa Approach: DL323, you are 20 miles southeast. turn left heading 3-6-0. Cleared for the ILS approach, runway 32. Descend and maintain 3000 until established. Tower frequency 119.90.
DL323: Left to 360. Cleared for the ILS 32. Descend and maintain 3000 until established. switching to tower on nineteen-nine.

DL323 (on Tower Freq): Ottawa Tower, DL323 at the outer marker inbound, established on glide slope ILS runway 32.
Ottawa Tower: DL323, good afternoon, make straight-in. Caution traffic in the vicinity.

DL323: Make straight-in for 32, 323.

Ottawa Tower: DL 323, you are cleared to land runway 32. ..

So, as you can see, an airplane would have been cleared to make an approach to a runway from some other controller. That controller would have been coordinating with the tower off the air letting them know what runway had been assigned. So it's not AF1 telling the tower what he wants to do, as much as it is just relaying and confirming what had been told to him b the previous controller.

Thanks for the sound.

Best,
J