customer: Hello. 
 agent: Hello, how may I help you today? 
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 agent: Sure, I am here to help you. Sorry, there is no reservation found as per your name to cancel your reseravtion. 
 customer: That's fine. Thank you for your help. 
 agent: You are welcome.
customer: I am Andrew Johnson. I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket?