Baby & Airplane Tickets...

So, we am planning to go to my friend's wedding when baby girl will be about 10 weeks old. My mom is coming to help out, too. I went to buy plane tickets this week online and the site was demanding baby girl's birthday and name!! Both are unknown at this time!! I had to close the computer... I don't need a website adding stress to choosing baby's name. I'm sure there's a work around, but it was a little too overwhelming right now.