options: m : i 'm afraid you need to hurry to catch the plane . m : okay i 'll book an economy class seat for you . m : okay i 'll book an business class seat for you . m : okay i 'll change your business class seat to economy class for you .
article: m : good morning . what can i do for you ? f : is there a flight flying for new york next sunday morning ? m : yes , there is . it takes off at 10:00 am . f : great . i want to economy class seats .