Hello.
user
Hello,  how may I help you today?
assistant
I want to change my reservation, can you help me with that?
user
Sure, I will help you with that. May I know your good name?
assistant
Paul Brown here.
user
Please wait for a moment, while I search for your reservation.
assistant
Sure.
user
Thank you for waiting, sorry there is no reservation found on your name in our system data to change it.
assistant
No problem, thank you for the information.
user
Thank you for visiting us, have a nice day ahead.
assistant