Hi.
user
Hello. How may I serve you today?
assistant
I would like to change my reservation due to postpone of my brother's engagement. Please help me.
user
Sure, may I know your name?
assistant
Sure, I am Mark Jones.
user
Please wait a minute.
assistant
Ok.
user
Thanks for your time, unfortunately there is no reservation found by this name.
assistant
I's Ok, thanks for he information.
user
Thanks for reaching us.
assistant