customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: I am Ashley Allen. I am planning to change an existing  reservation, due to health issue. Can you please change my reservation? 
 agent: Sure, please give me a minute. 
 customer: Sure. 
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 customer: That' s fine, thank you for your quick response. 
 agent: You are welcome.
agent: Sorry Allen, there is no reservation available on your name.