Dear Jasmine,
I was recently contacted by a bride asking me about me packages and she responded by saying that everything that I offered was exactly what she wanted and the right price for her. After a few days, she sent me an email saying that they would love to hire me and when could we meet up to sign the contract. We had set up a date to meet until she emailed me again saying that her fiancé found another photographer who they're considering working with, but she would let me know what they decide.
Ok, what do I respond to that? And how long is it ok to wait for them to make up their mind?
Sincerely,
Withering Waiter

Dear Withering Waiter,
Take a deep breath…just relax a bit and trust things will work out the way they are supposed to!  It's likely the groom is looking into a different photographer based on style or price (but most likely the latter).

Resist the urge to compete on price or speculate the nature of their decision making, but be sure to outline (and own) your booking procedures. Here's what I would email the client:

Hi ____!
Thanks for keeping me posted regarding the search for your wedding photographer.  More than anything, I want you and your fiance to be more than happy and confident with your choice.  I'd love the chance to meet with you as well, but I understand if things don't work out that way. 
Please let me know if there's anything else I can do to showcase my portfolio, services, and/or customize a collection based solely on your needs and desires for your wedding day.
I will email you if another bride inquires for your wedding date within the next five days, after which time I will assume you've moved in another direction.  Keep me posted as things progress and I wish you all the best until I hear from you again.
Much Appreciation,
WW

Withering Waiter, I hope this helps and I hope you find a way to book the wedding!
Deep Breaths,
j*