Hello.
user
Hello. How may I assist you today?
assistant
I would like to change my existing reservation, please help me out.
user
Sure, I am here to help you. Hold on for a moment. Let me check.
assistant
My name is Debra Harris.
user
Ok. Sorry Debra, there are no flights reserved on your given name.
assistant
Ok, no problem. Thank you for your information.
user
Welcome, thank you for choosing us. Have a great day.
assistant