customer: Hi. 
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 customer: My visit to the Planetarium has been postponed, due to some technical issues. This is the reason, I want to change my reservation with the name of Carol Adams. 
 agent: Ok, please wait. 
 customer: Ok. 
 agent:  Sorry, no reservation was  found on your name. 
 customer: No, problem. I will check with another option. 
 agent: Thank you, have a nice day. 
 customer: Thank you for your information.
agent: Hello. How can I assist you?