Hello.
user
Hello. How can I help you?
assistant
Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Please mention your name.
assistant
My name is Nicole Brown.
user
Sorry, no reservation found on your name to change your reservation.
assistant
No problem, thanks for your information.
user
Welcome, have a nice day.
assistant