What can I do for you , sir ?   Hmm , I want to change my traveler's cheque . Here is a traveler's cheque of 3,000 dollars . I would like to cash this cheque , please .   No problem . May I see your identification ?   Sure . How about my passport ?   That's fine ! How would you like this cash back ?   I want 20 hundred bills and the rest in fifties , please .   Three thousand . Please check it , sir . Thank you and have a good day . 