customer: Hello,. 
 agent: Hello, How can I amend you today the best? 
 customer: I want to cancel my recent ticket booking due to office work that my manager did not approve my leaves, so can you please help me with cancellation? 
 agent: Sorry for the inconvenience, We are euphoric to help you. Can you mention your name to check the reservation list? 
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 agent: Ok, please be on hold. 
 customer: Ok. 
 agent: We regret, There is no active reservation on your name to cancel it. 
 customer: Not a problem, thank you. 
 agent: Thanks for reaching us, Have a great day!.
customer: Sure, my name is Christopher Harris.