Hello.
user
Hello, how can I aid 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, I am here to help you.
assistant
Thank you.
user
May I know your name?
assistant
Myself Mary Hall.
user
Please wait a second.
assistant
Sure.
user
There is no reservation found under your name.
assistant
It's ok, thank you.
user
Thank you for opting us.
assistant