Hello.
user
Hello. How can I  help you?
assistant
I made a plan to meet my friends but now due to my work I have to post pone, can you please help me to change the dates of my reservation?
user
Sure, may I know your name please?
assistant
My name is Brandon Lee.
user
I am sorry no reservation found on your name.
assistant
No problem, thank you for the information.
user
Thank you for choosing us.
assistant