customer: Hi. 
 agent: Hello, how can I help 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, may I know your name? 
 customer: I am Carol Clark. 
 agent: Please wait a second. 
 customer: Sure. 
 __ 
 customer: Ok, no problem. Thanks for the information. 
 agent: Thank you for opting us.
agent: Sorry, no reservation found on your name.