Hi.
user
Hello, How exactly I can serve you the best today?
assistant
Due to sudden change in my trip to another location, I would like to do some changes in existing my reservation. Can you please help me out?
user
Let me know your name to check your reservation?
assistant
Dorothy Martinez here.
user
Sorry, we found no reservation on your given name.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant