customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: Due to sudden change in my trip to another location, I would like to do some changes in existing my reservation. Can you please help me out? 
 agent: Sure, please help me with your name to check. 
 customer: My name is Betty Gonzalez. 
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 customer: Sure. 
 agent: Sorry, I did not find any reservation by your name in our database. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for reaching us.
agent: Please wait for a while.