customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: On a sudden change in my trip , I would like to cancel my recent booking can you help me? 
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 customer: My name is Carolyn Anderson. 
 agent: Sorry, there is no reservation found with your name to cancel. 
 customer: Ok, thank you for your search and your information. 
 agent: welcome.
agent: Sure, may I know your good name please?