customer: Hi. 
 agent: Hello, how can I guide you for today? 
 customer: I am Ashley Parker. Can you please change my existing reservation as  my plan to go for holiday trip got postponed? 
 agent: Please give me a minute, I will check the status of your existing reservation. 
 __ 
 agent: Sorry, there is no reservation found under your name in our database. 
 customer: Ok, no problem. Thank you for the information. 
 agent: Thank you for contacting us, have a nice day.
customer: Sure.