Hello.
user
Hello. How may I assist you?
assistant
I want to change my existing reservation, because I have another important meeting on that dates, so I am unable to travel those dates, so can you please change my existing reservation?
user
Ok, please provide your name so that I can help you easily.
assistant
Sure, my name is Kevin Lopez.
user
Sorry Kevin, no reservation under your name.
assistant
It's ok no problem. Thank you for your information.
user
Ok, thanks for consulting us.
assistant