customer: Hi. 
 agent: Hello, how may I assist you? 
 customer: Andrew Lewis here. Can you cancel my flight ticket reservation? 
 agent: Sure, may I know your good name please? 
 customer: I am Andrew Lewis. 
 agent: Please wait for a moment. 
 __ 
 agent: Sorry, there is no reservation found on your name in our database to cancel. 
 customer: Not a problem. Thank you. 
 agent: Thank you for reaching us.
customer: Sure.