Need help to book flight tickets from Shanghai to Xiangyang. And also taxi from XY to Wudangs

There is no flight from Shanghai to XY, so you need to fly to Wuhan first and then use the airport shuttle bus to get to Xiangyang directly. The ticket can be booked in the Flight Section on this website.

For the taxi, you need to hire locally.

As know, the shuttle bus from Wuhan Tianhe Airport to XY will reach local bus station where you can find the frequent buses for Wudang Mountain. So I think you can choose to take the direct bus instead of taxis.