Software developer who can automate a process

Software developer who can make a process automated. A particular website has appointment slots that opens on anytime in a week or a month. I want a system that runs on the back end all the time and I get notification via call or audio notification so that appointment can be booked. Also the automated booking process whenever the appointments are available in the website. For more details about project DM me.
Note- I have requirement for the long term basis and also on monthly basis. If anyone can do this perfectly I can hire him/her on permanently basis.