A table without a header line.

hello everyone ,

i am new to webdynpro and i am facing difficulties facing errors while creating application

http://www.slideshare.net/RongjaksSon/t4-web-dynpro-for-abap-display-bookings-for-selected-flights

I am refering to this program . i have performed all the steps . But when i try to activate i get a error saying that

STRU_FLIGHTLIST IS A TABLE WITHOUT HEADER AND HAS NO COMPONNT CALLED AIRLINEID .

It comes in method get_bookings.

can someone help me please.