customer: Hello, I am Karen Jackson. 
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 customer: Due to an emergency meeting, I want to cancel my reservation. Can you help me with it? 
 agent: Sure, please wait for a while. 
 customer: OK. 
 agent: Sorry, no reservation found on your given name. 
 customer: No problem, thank you for the information. 
 agent: Thank you for choosing us.
agent: Hello, how may I help you?