customer: Hello. I am Eric Roberts. 
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 customer:  Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Can you change my existing reservation? 
 agent: Sure, please stand by I will get back to you. 
 customer: Sure. 
 agent: Thank you for waiting. 
 customer: Ok. 
 agent: We found a reservation on your name, so can you please share your journey dates? 
 customer: Ok. Journey dates are from 08/25 to 08/27. 
 agent: Please share your journey codes for further process. 
 customer: My airport codes are from EWR to BOS. 
 agent: Please stand by I will get back to you. 
 customer: Sure. 
 agent: Thank you for waiting, sorry to say no flights found with your details. 
 customer: Ok, No issues. Thank you. 
 agent: Thank you for reaching us, have a nice day.
agent: Hello, how can I help you?