Hi.
user
Hello. How can I help you?
assistant
 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?
user
Can I know your name?
assistant
I am Laura King.
user
Let me check status with your recent reservation.
assistant
Ok.
user
Sorry, there is no reservation by name Laura King.
assistant
That's ok, thank you.
user
Thank you.
assistant