Hello.
user
Hello, how may 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, please share your good name?
assistant
I am Pamela White.
user
Please wait for a while.
assistant
Sure.
user
Sorry, no reservation found on your given name.
assistant
No problem, thank you.
user
Thank you for choosing us.
assistant