customer: Hello. 
 agent: Hello. What help that I can do for you? 
 __ 
 agent: Sure, I can help you. Can I know your name please? 
 customer: Thank you, my name is Kathleen Williams. 
 agent: Be on hold for a moment to check it. 
 customer: Ok. 
 agent: Sorry to say that there is no reservation found for the user name in our back end to cancel your ticket booking. 
 customer: Ok, thank you for the information. 
 agent: You are most welcome and have a nice day.
customer: I would like to cancel my flight reservation as my trip got postponed, can you please help me?