customer: Hi. 
 agent: Hello. How may I serve you today? 
 customer: I want to change my existing reservation due to postponed of my exams. Can you please help me with it? 
 agent: Sure, I'll help you with this. 
 __ 
 agent: Please let me know your name to check the reservation status. 
 customer: My name is Brandon Allen. 
 agent: Ok, please wait a while. 
 customer: Sure. 
 agent: Thank you for waiting, we did not found any reservation by this name. 
 customer: OK, no problem. 
 agent: Thank you for choosing us. 
 customer: Thanks for your information.
customer: Thank you.