Hello.
user
Hello. How can I assist you today?
assistant
Can you help me to change my existing reservation because my trip dates are got postponed, can you help me?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Please mention your name.
assistant
I am Katherine Gonzalez.
user
Sorry, no reservation found on your name to change your reservation.
assistant
That's ok, thank you for checking.
user
Welcome, have a nice day.
assistant