customer: Hello. 
 agent: Hello, how can I assist you today? 
 customer: I want to cancel my recent reservation due to sudden postpone of my exams  dates. Can you help me with that? 
 agent: Sure, may I know your name please? 
 customer: I am Joshua Lopez. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 agent: Sorry, there was no reservation found with your given name. 
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 agent: Thank you for opting us.
customer: Ok, no issues. Thank you.