Hello.
user
Hello. How may I help you out?
assistant
I want to do some changes in my existing reservation. Can you help me for that?
user
Sure, I will help you in changing the reservation. May I know your name please?
assistant
My name is Kenneth Lee.
user
Sorry, there are no reservations found.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant