Hello.
user
Hello. How can I  help you?
assistant
Can you please help me in changing my recent reservation? As my planned trip has been postponed to some other dates.
user
Sure, just a moment please. May I know your name please.
assistant
Sure, my name is Brandon Collins.
user
I am sorry no reservation found on your name.
assistant
Oh! That's ok, thank you for giving the information anyways.
user
Thank you for choosing us.
assistant