chat_history: ['My husband and I are going a  cruise with a couple that we have been friends with for a long time,']
sys_response: That sounds so great. Who was the one to come up with this plan?
situation: My husband and I are going on a cruise with another couple that we have been friends with for years. We let them book the cruise and we just give them so much money each month, until the cruise is paid for. It takes all the stress of booking/planning away for me, and we can just enjoy the cruise when its time.