customer: Hi, Katherine Smith here. 
 agent: Hello, How can I support you? 
 customer: I recently reserved a ticket to give a visit to my best friend. But, before my journey she came to my home and gave me a surprise visit. So, now I want the ticket to be cancelled. Can you please help me? 
 agent: Sure, I am here to help you. Please wait a minute. I will check and let you know. 
 customer: OK. 
 agent: Thank you for your patience. There is no recent reservation found against your name. 
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 agent: Thank you for contacting us.Have a great day.
customer: OK, Thank you.