Hi.
user
Hello.
assistant
Myself Debra Turner.
user
How may I help you?
assistant
My son is giving a presentation on international competition, but due to some sudden changes, I want to change my existing reservation.
user
Sure, I will help for that. Wait a moment.
assistant
Ok.
user
Sorry Debra Turner, we didn't found any reservation to change.
assistant
It's ok, thank you for checking.
user
Welcome. Thank you reaching us.
assistant