customer: Hello, I am Christine Carter. 
 agent: Hello, how may I help you at this moment? 
 customer: As my manager did not approve my leave, so I would like to cancel my ticket. 
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 customer: Sure, take your time. 
 agent: Sorry, no ticket is showing on your name. 
 customer: That's ok, may be my friend has cancelled it before. 
 agent: Yes, it may be. Thank you for approaching us. 
 customer: Welcome.
agent: Can I have a moment please?