customer: Hi, I am Samantha Williams. 
 agent: Hello, how can I help you today? 
 customer: My business meeting venue has changed, can you please help me in changing the reservation? 
 __ 
 customer: Ok. 
 agent: Thanks for waiting, there is no reservation found on your name. 
 customer: Ok, thanks for giving information. 
 agent: Thank you.
agent: Sure, please wait for a while.