customer: Hi. 
 agent: Hello, what kind of service are you looking for? 
 customer: Can you please help me in changing my recent reservation? 
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 customer: Myself Donald Collins. 
 agent: Please wait while I fetch your active reservation with us. 
 customer: Ok. 
 agent: We are unable to find any reservation on your name. 
 customer: Ok, thanks for your information. 
 agent: Thank you.
agent: Sure, may I know your name please?