Hello.
user
Hello, How I can help you?
assistant
I want to change my existing reservations. Can you help me?
user
Sure, I will be happy to help you. Can you provide me your flight details?
assistant
My new reservation departs from Dallas & Fort Worth, TX-DFW and returns from Dallas &Fort Worth, DFW.
user
Can I have your name please?
assistant
My name is Robert Perez.
user
Thank you for providing your name. Sorry to inform you there is no reservation found.
assistant
Ok, Thank you for your valuable information.
user