Hello, I am Betty Martinez.
user
Hello, how may I assist you today?
assistant
I just want to change my existing reservation. Can you help me in this?
user
Sure, we are here to help you.
assistant
Thank  you.
user
Please wait a minute.
assistant
Sure.
user
Thank you for waiting, sorry to notify you that no reservation found on your name.
assistant
It's ok, not a problem. Thank you for your information.
user
Thank you for opting us.
assistant