customer: Hi, Shirley Thompson here. 
 agent: Hello, how may I aid you today? 
 customer: Owing to an emergency, my planned trip to New York with friends has been postponed. So I want you to change my existing reservation? 
 agent: Sure, I will help you. Please wait for a while. 
 customer: Sure. 
 agent: Sorry, there is no reservation found on your given name. 
 customer: Ok, no worries at all. 
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 customer: Thank you for your service.
agent: Thanks for choosing us.