customer: Hi. 
 agent: Hello, how may I help you? 
 customer: Can you cancel my recent reservation? 
 agent: Sure, please share your good name? 
 customer: Ok, I am David Turner. 
 agent: Please wait for a while. 
 customer: Ok, take your time. 
 agent: Sorry, no reservation found on your given name. 
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 agent: Thank you for choosing us.
customer: It's ok, thanks for checking.