Hi. I am Mary Turner.
user
Hello, how may I assist you?
assistant
I want to change my existing reservation. Can you be my helping in doing this?
user
Sure, we are here to help you.
assistant
Thank you.
user
Please wait a moment.
assistant
Sure.
user
Sorry, there is no reservation found on your name.
assistant
Not a problem, thank you.
user
Thank you.
assistant