I am making an app in which a user can make an appointment with the vet near to the user’s location. I wanna know please, how can I not clash with the appointment took at vet’s clinic. For eg if a user books appointment for mon at 8am through my app and someone else who called in the clinic and booked for the same time and date.
Please help me how can I get around this, and just to be clear I don’t have that much budget to make a website.
PS: I am a beginner.
Looking forward to hearing from you.