Hi.
user
Hello, how can I help 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 with changing of my reservation?
user
Sure, I am mirthful to help you with that.
assistant
Ok.
user
Can you please share me your name?
assistant
Betty Lopez here.
user
Sorry, no reservation found on your name in our database.
assistant
That's ok, thank you for your help.
user
Thank you for choosing us, have a nice day.
assistant