How to cancel an appointment? There is a short message in someone else's mobile phone.

If you need to cancel the reserved SMS on someone else's mobile phone, you can try the following methods according to your own situation:

1. Contact each other directly: The easiest way is to contact each other directly and ask them to cancel the appointment. You can get in touch with them by phone, SMS, social media or other means of communication, explain your situation and ask for cancellation.

2. Ask the other party to help cancel: If you can't cancel the appointment directly, you can ask the other party to help cancel. Provide them with necessary information, such as the date, time and place of the appointment, so that they can cancel the operation.

3. Use the support of the mobile phone service provider: If you think that the reservation is made through the application or service of the mobile phone service provider, you can contact the customer support team of the service provider and ask if they can help you cancel the reservation.

4. Check the reservation confirmation information: If you receive the reservation confirmation information, it usually contains information about canceling the reservation or contact information. Check the relevant information in the short message and follow the instructions.

Please note that cancellation may be limited by specific circumstances and booking methods, and may sometimes require the assistance of the other party. Anyway, we should respect each other.