Hello.
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 in changing my reservation?
user
Sure, May I know your name?
assistant
Myself Brenda Martinez.
user
Ok, please wait a minute.
assistant
Sure.
user
Thanks for waiting, there is no active reservation on your name.
assistant
It's ok, thank you for your help.
user
Thank you.
assistant