how to make a professional Appointment setter chatbot on voiceflow

Hey everyone, I’m trying to make Appointment setter chatbot for a clinic, which will be booking appointments and checking availability of the doctors, a chatbot can simply suggest a doctor by listening diagnostics, and can answer some basic questions about the clinic and etc.
Can anyone help me how can I create that? How can I build a conversational flow? User friendly interface and more flexibility…
I’ll be looking forward for your respected answer.
Thankyou …