When a fan is looking at your upcoming events, they might not always be able to find a show close to where they live. Making sure that you have the Request a Show button enabled at the bottom of your Widget and Smart Link page will give your fans the ability to let you know that they would love to see you play in their city. This is a great tool that will give you important info to use when planning your tours and promotions.
Fans can also access this feature from your artist page.
You can see the locations where your fans are requesting you to play in the Insights section of Bandsintown for Artists. Find the "Top Cities" area and then click the circle beside "By Fan Requests" to toggle between those and the rankings "By Followers".