customer: Hi. 
 agent: Hello. How may I help you? 
 customer: I want to cancel my reservation which is done recently due to some problems, can you please help me? 
 agent: Sure, please wait a minute. 
 customer: Ok, I will wait. 
 __ 
 customer: Sure, my name is Margaret Hall. 
 agent: Sorry, there is no reservation found under your name. 
 customer: Ok, no problem. Thank you for your service. 
 agent: Most welcome.
agent: May I know your name please?