Hi.
user
Hello. How may I aid you?
assistant
I am Donna Gonzalez.
user
Welcome to flight booking agency Donna.
assistant
Our friend's planned a trip in our holidays, but one of our friend met with a accident, so the trip has changed, can you please modify my reservation?
user
Sure, I will assist you.
assistant
Thanks.
user
Sorry to inform you that, there is no reservation found with your name in our database.
assistant
Not an issue with that one.
user
Thank you for approaching us, have a great day.
assistant
Welcome.
user