How can I teach Siri how to spell my child's name correctly in texts? When I text my husband something like "I picked up Hailey from school and am on my way," Siri always misspells my daughter's name as Haley (with no "i"). I have an entry in my contact info identifying who my daughter is, but when I'm dictating a text or other message, that appears to be irrelevant. 

I'd like to teach Siri that any time I refer to my child's name it should always be spelled a certain way. I feel foolish sending messages with my own child's name misspelled.
Siri isn't the brightest bulb in the box and she often misunderstands
  unusual words and names. Fortunately, you can teach her how to speak
  properly by adding phonetic pronunciations to your contacts.
  
  How do you do this? Watch this video or follow these
  instructions:
  
  
  Open up your uniquely-named contact and tap the Edit button up top. 
  Scroll down to the bottom of the contact page and find the area that
  says "Add New Field." 
  From your options, choose "Phonetic First
  Name" (or "Phonetic Last Name," depending on which one is the
  problem). 
  Enter in the phonetic version of the problematic name and
  tap Save. Now when you ask Siri to recognize or say a name, she'll
  get it right.
  


Source: Teach Siri to Correctly Recognize and Pronounce Names in Your Address Book