customer: Hello. 
 agent: Hello. How may I help you? 
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 agent: Ok, please hold on a moment. 
 customer: Ok, please check with my previous booking and tell me the status. 
 agent: Thanks for your time, there is no reservation found on your name. 
 customer: Oh! That's sad, thank you for checking anyways. 
 agent: Thanks for choosing us. 
 customer: You are most welcome.
customer: William Miller here. I want to change my reservation due to my office meeting, can you help me?