Hello.
user
Hello, may I know your name please?
assistant
I am Betty Smith.
user
Yes, how can I help you?
assistant
My father planned for the trip, but due to health issue he changed the trip, so please help me to change the existing reservation.
user
Sure, please wait for a while.
assistant
Ok, take your time.
user
Sorry, there is no reservation found by your name. Do you want any other information please?
assistant
It's ok. No, thank you.
user
Thank you and have a nice day.
assistant