customer: Hello. 
 agent: Hello. How can I assist you at this moment? 
 __ 
 agent: Sure, I am happy to help you with that. Can I have the name on which you reserved earlier? 
 customer: My name is Edward Anderson. 
 agent: Ok, please wait a moment and I will check reservation status. 
 customer: Sure. 
 agent: Thank you for waiting. Sorry Edward, no reservation found under your name to cancel. 
 customer: Ok, no issue. Thank you for your information. 
 agent: My pleasure. Thank you for choosing us, have a great day.
customer: The event which I am going to attend has been cancelled, please help me in changing my existing reservation.