customer: Hello, I am Susan Moore. 
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 customer: Due to an emergency meeting I want to change my existing reservation. Can you please help me out? 
 agent: Sure, we are glad to help you. Please wait for a while. 
 customer: Sure. 
 agent: Thank you for waiting. Sorry, we did not find any existing reservation based on your good name. 
 customer: Thanks for the information. 
 agent: Thanks for choosing us, have a great day.
agent: Hello, Susan Moore, how may I help you?