Service provider App with Ionic

My Budget is 250 usd only, Don't bid if you ask to raise it. The app will be built with IONIC only, I will also need the backend API. PSD is ready(Will share with selected freelancer only) User:- 1)After installing the application customers can see the list of all Service providers. 2)User can click on any service provider can check the details page of service provider which will include the Provider name, Address, Service and a calendar where all booked times will be marked in red. 3)Calendar will be shown as date-hours(30 minutes interval) 4)Customer can book an appointment, It will be automatically confirmed. 5)Customer can cancel/Reschedule any appointment 6)While booking any appointment the customer needs to provide with Name and email address 7)Customer will get a notification if any SP will cancel the booking. SP(Service provider):- 1)For Service provider we have to implement the Registration(Email, Contact number and password) and Login, Otherwise which SP will access the app it can't be tracked, And accordingly the respective bookings wont be [login to view URL] OTP or any other verification wont be required. 2)After login Sp will have 3 sections: A)Profile: Here Sp can add the service and address. B)Calendar: Here SP can update the busy hours in red. C)Appointments: Here SP can check the booking with Customer name, Email and Booking time. SP can cancel any appointment. D)SP will get the notification if any customer Schedule, Reschedule and Cancel any booking. Budget(200-250) timeline: 10 days