Hi,.
user
Hello.
assistant
I am Barbara Walker.
user
Please let us know, How exactly I can help you at my best today?
assistant
I want to change my reservation, can you help me with that?
user
Sure, I can help you in that.
assistant
Thank You.
user
Please hold on for a while.
assistant
Sure.
user
Thanks for your time. Sorry Barbara Walker, there is no active reservation on your name to change it.
assistant
Ok, thanks for your kind effort.
user
Thanks for approaching us.
assistant