customer: Hello, I am George Clark. 
 agent: Hello, How can I help you? 
 customer: Actually I have planned to attend the client meeting but due to some technical issues the meeting has been postponed. Can you please help me in changing my reservation? 
 agent: Surely, I will help you. Please wait a moment. 
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 agent: Sorry, We are unable to found any reservation on your name. 
 customer: Ok, no issues. Thank you for your information. 
 agent: Thank you, Have a nice day.
customer: Sure.