Okay, I am hopefully close to earning a CP. I have a trip booked for myself in early April. I'd like to have this CP wrapped up by Feb, worst case early March. My question is, should I book my soon to be companion onto my flight with points now to hold his seat? If so, how do I go about changing it once I have the CP? I've never earned a CP before, so I'm a newbie to this whole deal. I'm not sure what the risk of the flight selling out is if I just wait for the CP and don't do anything else. It's a weekend flight MDW-SAN around spring break time.