Hello.
user
Hello. How can I assist you today?
assistant
Can you help me to change my recent reservation?
user
Sure, may I know your name to check for the previous reservation?
assistant
Sandra Davis here.
user
Please allow me a moment.
assistant
Sure.
user
There is no reservation found under your name in our data base.
assistant
That's ok, thank you for checking.
user
Thank  you for contacting us.
assistant