Hello.
user
Hello. How may I help you today?
assistant
I am planning to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, I can change your reservation right now. Before that I need to know your good name please?
assistant
Sure, my name is Donald Baker.
user
Please wait a moment.
assistant
Ok, take your time.
user
 Thanks for your time, we are sorry to say that there is no active reservation found on your name.
assistant
It's ok, thank you for the information.
user
Thanks for opting us, wish you a great day.
assistant