Hello.
user
Hello, how can I aid you?
assistant
I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, may I know your name?
assistant
Sure, my name is Eric Young.
user
We found your reservation,  can you share your journey dates?
assistant
Sure, my trip dates are Apr 17 and Apr 19.
user
May I know your airport codes?
assistant
Sure, my location airport codes are EWR and BOS.
user
Do you have any preferences?
assistant
Yes, I am looking for a direct flight.
user
There is  a connecting flight with number 1019 in airline Frontier, the fare is 100 in economy class. Can I book it?
assistant
My depart time must be afternoon.
user
Sorry, there is no direct flight on your given dates.
assistant
It's ok, thank you for the information.
user
Thank you for opting us.
assistant