Does Ctrip have groups? How do you get in touch with fans?

We have a panel of Q&A experts

Hello, <br/>1---After booking the itinerary, there will be a temporary group, such as [air tickets or hotels] to Shanghai, and Ctrip will send a message to all those who go to Shanghai during this period, telling them that there is a group xxx group, invite to join. <br/>2---Achieve a certain membership level and have a group, such as: Ctrip Overseas Members Group, etc. <br/>3---Ctrip strategy and Q&A, there is also a group [I didn't join this one, I seem to remember the name of ctrip999]