Hello.
user
Hello, how can I aid you today?
assistant
I would like to change my existing reservation, can you please help me out?
user
Sure, I am here to help you. May I know your name please?
assistant
My name is Steven Collins.
user
I found a reservation on your name, may I know your new airport codes please?
assistant
My airport codes are DTW to DEN.
user
Ok, can you please provide your travelling dates?
assistant
My planned travel dates are on Jan 15 and Jan 17.
user
Ok, do you have any specifications?
assistant
I prefer an economy class.
user
Sorry Steven Collins, there are no flights available on your requested dates.
assistant
Ok, no issues. Thank you for your information.
user
Welcome, thank you for choosing us. Have a great day.
assistant