customer: Hello. 
 agent: Hello, how can I help you? 
 customer: I want to change my existing reservation due to heavy rainfall, can you please help me with that? 
 agent: Sure, can you provide me your name? 
 customer: My name is Samuel White. 
 agent: Give me a moment. 
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 agent: Samuel White. I regret to inform that there is no reservation by your name. 
 customer: No problem, thank you. 
 agent: Thank you for reaching us.
customer: Sure.