Today I tried to help a customer who lost a seat next to her companion and failed to get a seat together. The seat change occurred beacause of a an aircraft switch. I explained as best as I could and was unable to please this lady. The next thing from her mouth was that she was never flying this airline again ( if only I had i nickel for everytime I heard that). I then explained that we try to serve as best as we can but if she was unhappy we would be sad to lose her as a customer. Boy, did she let me have it( maybe because I acted like I wanted her to go elsewhere). She took my name , my Mgrs name, told me she was a doctor, etc.,etc., etc. My queation is if we have oversold flights and warehouse prices and self service kiosks, do you think the company really cares about losing a few grumpy customers. So they threaten to leave,we have another customer in the wings waiting to pay $200.00 to fly round trip transcon. Tell me, on this scale are a few grumpy''s leaving a viable threat to our bottom line? Do you think the company cares?