Hello.
user
Hello. How can I help you?
assistant
Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you help me?
user
Sure, I am here to help you. Please share your name.
assistant
Barbara Moore here.
user
Ok, please wait a minute.
assistant
Sure.
user
Thank you for waiting, sorry  no reservation found on your name.
assistant
No problem, Thanks for the information.
user
Thank you for reaching us, have a good day.
assistant