customer: Hi. Samantha Green here. 
 agent: Hello, how can I aid you? 
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 agent: Sure, please wait a moment. 
 customer: Ok. 
 agent: Sorry, there is no reservation found on your name. 
 customer: Ok, not an issue. Thank you for your information. 
 agent: Thank you for reaching us.
customer: I want to change my existing reservation due to some changes in weather conditions. Can you help me in that?