Error code when trying to make reservation

[okiephd]

Is anyone else running into problems trying to book a reservation? I've tried twice now and I get this error code: Error detail 1: F6_zaxLaRDyai94n42NSLw : 59548120-2e09-4bcf-97c0-4909f5241227 : 400522138

I am trying to book using sale promo code--I'm not sure if this is related or not.

[dfwskier]

Not sure what that code means. 

Could you possibly be trying to book a flight on a day where there are no flights? Some routes do not have 7 days a week service.

Look at the low fare calendar to verify there are flights on the day you want to fly.