customer: Hello. 
 agent: Hello. How may I assist you? 
 customer: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that? 
 agent: Sure, I am here to help you out. May I know your name please? 
 customer: Thank you. I am Dennis Martin. 
 agent: Wait a moment please. 
 __ 
 agent: Dennis Martin, we haven't found any reservation under your name in our database. 
 customer: Ok, no issues. Thanks for the information. 
 agent: Thank you for choosing us.
customer: Sure.