Hello.
user
Hello, how may I help you?
assistant
I would like to change my existing reservation, can you help me in that?
user
Sure, please share your good name?
assistant
Sure, myself Andrew Carter.
user
Please wait for a while.
assistant
Sure, I will wait for your response.
user
Sorry, no reservation found on your given name.
assistant
That's ok, no problem. Thank you for the information.
user
Thank you for choosing us.
assistant