If you haven't experienced the same journey, you can receive the reservation information at any time.

Does the subject want to ask, "What makes you always receive reservation information without downloading the same itinerary?" Personal information was leaked, and some people used their identity information to buy tickets. When you check the SMS, you can receive the reservation SMS at any time without downloading the same itinerary. This is caused by personal information being leaked and bought by others with their own identity information. You need to take good care of your personal information to improve your safety awareness.