Fill the blanks in following dialogues. PAX: Miss, I’m sorry to trouble you. But I’ve got a question. CA: Yes? What is it? PAX: Beijing is my transit airport. I have a connecting flight to Qingdao. 1 ( 但我不知道如何办理转机手续 ). CA: 2 ( 您预定了飞往青岛的航班机票了吗 )? PAX: Yes, I have. It’s CA 5150, departing at 12:30. CA: 3 ( 我建议您到到港大厅的中转柜台核实一下 ). They will able to help you. PAX: Thank you.