customer: Hello. 
 agent: Hello. 
 customer: I am Helen Moore. 
 agent: How can I help you? 
 customer: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation? 
 agent: Sure, let me check your reservation details in our database. 
 customer: Ok. 
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 customer: No problem, thanks for your information. 
 agent: Thank you for reaching us.
agent: Sorry, I did not find any reservation by your name in our database.