customer: Hello. 
 agent: Hello, how can I guide you for today? 
 customer: Due to some problems my trip was cancelled so can you please cancel my flight ticket? 
 agent: I am here to help you about that. Can you please provide your name to check the reservation status with your name? 
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 agent: I regret to say this Dennis Lee, there is no active reservation with your name in our booking list to cancel the reservation. 
 customer: It's ok no problem. Thank you for your information. 
 agent: You are welcome, thank you for reaching us.
customer: Thank you for your response, my name is Dennis Lee.