Answer:
Usually it is best to choose a florist who is located near where you want the flowers to be delivered, so they arrive fresh and don't get damaged by being transported. You can do this by either:
1. looking up a business directory, such as yellow pages, in the city where you want to arrange delivery, or
2. use an international network of florists with an online ordering system, like Interflora or Teleflora. They will put your order through to a local florist.