customer: Hi. 
 agent: Hello. 
 customer: Stephen King here. 
 agent: How can I assist you today? 
 customer: I want to do some changes in the existing reservation because my friends are not able to come on the those dates, can you please help me? 
 agent: Sure. Please wait for a minute, let me check. 
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 agent: Thank you for waiting, but I have not found any reservation by your name. 
 customer: That's ok. Thank you for the information. 
 agent: Thank you for contacting us, have a nice day.
customer: Ok.