Hello.
user
Hello.
assistant
I am Daniel Phillips.
user
How may I support you at this moment?
assistant
I need to change my reservation as my plan to go for hiking trials got postponed. Can you help me?
user
Sure, please wait for few minutes.
assistant
Ok, I will.
user
There is no existing reservation found on  Daniel Phillips.
assistant
That's fine, thanks for your assistance.
user
Thank you for reaching us.
assistant