customer: Hello. 
 agent: Hello. How may I help you at this minute? 
 customer: Can you help me in changing my recent reservation with the name Gary Thompson? 
 agent: Sure, I am here to help you with that. 
 customer: Thank you. 
 agent: Ok, may I know your name? 
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 agent: Please wait for a minute. 
 customer: Sure. 
 agent: Sorry to say that, there is no reservation found on your name in our database. 
 customer: Its ok, thank you. 
 agent: Thank you for reaching us.
customer: I am Gary Thompson.