customer: Hi. I am Raymond Miller. 
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 customer: Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out? 
 agent: Sure, we are glad to help you. 
 customer: Thank you. 
 agent: Please wait a minute, I will check and let you know the status of your existing reservation. 
 customer: Sure, take your time. 
 agent: Thank you for waiting, sorry to notify you that there is no reservation matches with the given name. 
 customer: Ok, not an issue. Thank you for your kind information. 
 agent: Thank you for opting us.
agent: Hello, how can I provide assistance to you?