The mobile phone receives the short message of arrival notification.

Yes, SMS will remind you: reservation confirmation.

If there is no credit card guarantee and no payment, you can't go. It doesn't matter. You can't get money if you want to. However, it is suggested that the landlord call the hotel or Ctrip to notify the cancellation before the arrival time, and be polite and will not deduct the money.

If you use a credit card as a guarantee, the guaranteed reservation must be cancelled as soon as possible, otherwise the cancellation on the same day will deduct the first night room fee (whether you go or not). Of course, if you use a credit card to guarantee the room, even if the hotel is full and you don't arrive at the hotel that day, the hotel will still keep the room until noon the next day 12.