Hi.
user
Hello. How can I assist you at this moment?
assistant
Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out? Sure, I am Robert Gonzalez.
user
Sure, I am happy to help you with that. Please wait a moment.
assistant
Ok, please check my details under my name.
user
Sorry Robert Gonzalez, no reservation has found under your name to change.
assistant
No issues, thank you for your time.
user
Thank you for choosing us, have a good day.
assistant