Hello. Stephanie Brown here.
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 wait for a moment to check your details.
assistant
Ok.
user
Sorry to say, no reservation found on your name.
assistant
Ok, no issues.
user
Thank you for reaching us.
assistant
Thank you for informing.
user