Hello. My name is Robert Baker.
user
Hello, how can I best serve you today?
assistant
I want to change my existing reservation, can you please help me in that?
user
Sure, we can help you.
assistant
Thank you.
user
Please wait for a moment.
assistant
Sure.
user
Thank you for waiting, there is no reservation found on your name.
assistant
No problem, thank you for the information.
user
Thank you.
assistant