Hello.
user
Hello. How can I assist you today?
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 in changing my reservation?
user
Sure, will you mention your name for checking the reservation status?
assistant
Sure, myself Angela Nelson.
user
Please give me a moment.
assistant
Sure.
user
There is no reservation found under your name.
assistant
It's ok, thank you.
user
Welcome, have a great day.
assistant