customer: Hello, I am Jonathan Smith. 
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 customer: Can you please change my existing reservation due to postponed of my project submission dates? 
 agent: Sure Smith, please wait a moment. 
 customer: OK. 
 agent: Sorry, there is no reservation found on your name. 
 customer: OK, not a problem. 
 agent: Thank you for approaching us. 
 customer: Thanks for the information.
agent: Hello, how can I assist you?