customer: Hello. 
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 customer: I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. Can you please help me out in changing my reservation? 
 agent: Sure, I am here to help you. May I know your name? 
 customer: Thank you and myself Brian Wilson. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 agent: Thank you for your time, There was no reservation found on your name in our database. 
 customer: It's ok, thank you for your help. 
 agent: Thank you for choosing us.
agent: Hello, how can I help you?