customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I am William Moore. As my sister's marriage is postponed, Can you please cancel my reservation? 
 agent: Sure. Please wait for a while. I will check and let you know. 
 customer: Ok. 
 agent: We have not found any reservation on your given name. 
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 agent: Thanks for choosing us.
customer: Thank You.