customer: Hi. 
 agent: Hello. How can I help you? 
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 agent: Please wait a moment to check the reservation status. 
 customer: Sure. 
 agent: Sorry, no reservation found by your name. 
 customer: Not an issue. Anyway, thank you for checking. 
 agent: Thanks.
customer: I am Patricia Baker. I want to stay for some more days at Minneapolis, can you please help me to change my flight reservation?