customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I need to change my reservation, due to sudden change in my trip. Can you please aid me? 
 agent: Sure, may I know your name please? 
 customer: Nancy Roberts. 
 agent: Wait a while , Kindly. 
 customer: Sure. 
 __ 
 customer: Not an issue, thank you for helping me. 
 agent: Thank you for reaching us.
agent: Thank you for waiting, we do not found any reservation in your name to make changes further.