customer: Hi. 
 agent: Hello, how may I aid you? 
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 agent: Sure, I am here to help you out. Please allow me a moment. 
 customer: Ok. 
 agent: Sorry  Joseph Garcia, there is no active reservation on your name in our database. 
 customer: That's ok, thank you for your help. 
 agent: Thank you for reaching us.
customer: Joseph Garcia here. I would like to spend some more days with my family, so please help me in changing my existing reservation.