Hi.
user
Hello.
assistant
I am Benjamin Miller.
user
Miller how may I assist you?
assistant
Actually, there is a small change in my planning. So, can you help me to change my reservation?
user
Sorry, there are no reservation on your name.
assistant
Oh! that's fine.
user
Thank you for choosing us.
assistant
Anyway, thank you for your supportive service.
user
It's my pleasure.Have a nice day.
assistant