Build a Chatbot

I am starting a business as a healthy living facilitator and I need to market my business via Facebook. I also want to automate the marketing, sales and onboarding process as much as possible. I have developed my own basic chatbots on Chatfuel, but need to build a bot at a higher level of sophistication. Will you be able to help me with: 1) Chatfuel bot engaging potential customers and answering questions about my service and offering 2) Bot integrating with available calendar for booking consultations/webinars 3) Setting up payments via the bot, I will arrange the merchant account and provide information for portal integration 4) Database management for follow up sales campaigns and segmentation for further Facebook audience creation utilizing ¨People¨ functionality on Chatfuel I am looking for someone to develop and the necessary tool and hopefully continue to enhance the bot over the longer term. Can you help?