Hello.
user
Hello. How can I assist you at this moment?
assistant
I would like to change my reservation as I am leaving for delegates meet, can you please help me out?
user
Sure, I am happy to help you with that.  Can I have your good name to check your reservation status?
assistant
Emily Davis here.
user
Ok, please wait a moment.
assistant
Sure.
user
Sorry Emily Davis, no reservation has found under your name to change.
assistant
Ok no problem, thank you for your services.
user
Thank you for choosing us.
assistant