customer: Hello. 
 agent: Hello. 
 customer: Ronald Jackson here. 
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 customer: Co-incidentally, I gave wrong dates for my previous reservation. So, can you alter my previous reservation? 
 agent: Sure, give me a minute. 
 customer: Sure. 
 agent: Sorry Jackson, there is no reservation found on your name. 
 customer: It's fine. Anyway, thank you. 
 agent: You are welcome.
agent: How can I assist you, Jackson?