If you were not assigned a seat, this means either the airline is not permitting pre-assigned seating at this time or they may only assign seating at Check In. Please note, once you have paid for your ticket, you do have a confirmed seat regardless of whether or not you have a pre-assigned seat number.

Keep in mind that pre-assigned seating is different on all airlines. Some require a fee for pre-assigned seating; others will close the ability for pre-assignment if it is too far out, or too close in. If pre-assigned seating is not available at this time, be sure to check-in early! This is usually the time when available seats held for other purposes get opened up.