Words of appreciation warm will make customers disarmed psychological, because your phone is not let him handle the business, he will feel relaxed good impression on you.
Thanks to the warm words of field will let the customer release alert psychological, because your phone is not to let his business, he will feel relaxed, increase your feelings.
To thank the word warm will allow customers to stand down, because your phone is not going to let him conduct business, he will be in a relaxed mood, increased goodwill for you.