customer: Hello, I am Susan Hall. 
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 customer: Due to an emergency meeting, I want to change my reservation. Can you help me with it? 
 agent: Sure, we are here to help you. Please wait a moment, I will check your details and let you know. 
 customer: OK. 
 agent: I regret, there is no reservation found on your name to proceed further. 
 customer: No problem, thank you for the information. 
 agent: Thank you for consulting us.
agent: Hello, which service are you looking for today?