customer: Hello. 
 agent: Hello,. How can I assist you? 
 customer: I am Anthony Hill want to change my reservation due to prepone of my exams. Can you help me in changing my reservation? 
 agent: Sure, please be on hold. 
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 agent: Thanks for holding on, we did not find any reservation with your name. 
 customer: Ok, no issues. Thank you for your help. 
 agent: Thanks for availing us.
customer: Sure.