I don’t normally recommend having a professional photographer stay until your first dance unless you have something specific in mind that you would like to achieve or capture. Generally people want to relax during a wedding reception and aren’t keen to participate in any formal photography and having a professional photographer capturing folk sitting around chatting seems to me like  a waste of money that would be better spent on champagne.  However, if you do have ideas that you would like to make happen photographically speaking, then just get in touch and I’m happy to provide you with a quotation to stay for longer.