customer: Hello. 
 agent: Hello, how can I help you? 
 customer:  I would like to change my flight reservation as my trip got postponed, can you please help me? 
 agent: Sure, we are here to help you. 
 __ 
 agent: On whose name, the reservation has been made earlier? 
 customer: My name is Ryan Moore. 
 agent: Please wait for a while. 
 customer: Ok, take your own time. 
 agent: Thanks for your time, we are regret to inform you that, there is no active reservation found in your name. 
 customer: Not an issue, thank you for the information. 
 agent: Thank you for availing us.
customer: Thank you.