customer: Hi. 
 agent: Hello. How may I help you today? 
 customer: I want to change my current reservation due to meeting with my friend, can you help me with that? 
 agent: Sure, I am oblige to help you with that. Can you please let me know your name to check your previous reservation? 
 customer: I am Jerry Adams. 
 agent: Please wait a moment to check. 
 __ 
 agent: Thank you fro waiting, sorry as per your concern I can not change your reservation because there is no reservation found on your name. 
 customer: Ok, no issues. Thank you for your service. 
 agent: Thank you for availing us, have a great day.
customer: Sure.