Hello, my name is Larry Williams.
user
Hello. How can I assist you today?
assistant
I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, please allow me a moment to check for the availability of flight.
assistant
Thank you, I will wait for your response.
user
Larry, there is no reservation found under your name.
assistant
It's ok, thank you for the information.
user
Thank you for reaching us, have a great day.
assistant