What does it mean to fill in the identity message when flying pigs travel?

The message meaning of filling in the identity information when flying pigs travel is as follows:

Flying pig travel fills in identity information SMS to confirm identity and personal information, so as to book a trip or hotel. This short message is to ensure that the identity information provided is consistent with the account information on the Flying Pig Travel website or application. Fill in the identity information including name, ID number, passport number, contact information, etc. The purpose of this move is to ensure the smooth booking and travel process and protect the safety of personal information. Please follow the instructions of SMS, fill in the correct identity information as required, and complete the reservation or confirmation process.