customer: Hi. 
 agent: Hello, how may I help you? 
 customer:  I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. can you please help me out with changing of my reservation? 
 agent: Sure, we are happy to help you. May I know your good name? 
 __ 
 agent: Sorry, there is no active reservation on your name in our records. 
 customer: That's ok, thank you for your help. 
 agent: Thank you for contacting us.
customer: Elizabeth Lee here.