There should be

"I don't know. Didn't you hear? Our flight is about to board, hurry up and check the tickets."

Gu Yanzhi was practically pulling Zhou Nan into the plane. He was afraid that she would go back on her words, so he pulled her all the way to the shuttle bus and the plane. He only heaved a sigh of relief when they were both seated. Zhou Nan sat by the window while he sat outside. He had locked her in place so that she would not be able to get out.

"I've never gone out with a guy before," Zhou Nan said, still a little nervous.

Gu Yanzhi thought,'I seem to have traveled with a boy before.'

because you're going to a University after the new year. It's a graduation trip for Yingying.

Zhou Nan thought about it and agreed. They would have very few opportunities to spend time together in the future. She should cherish it and not have so many concerns.