Hello.
user
Hello, may I aid you?
assistant
I am planning to visit to science exhibition at Phoenix AZ-PHX.
user
Ok, may I know your trip dates?
assistant
My trip dates are from 05/28 and 05/30.
user
Where do you want to board?
assistant
My  boarding point is Denver CO-DEN.
user
Ok, may I know your price limit?
assistant
I can afford up to 200.
user
May I know your name?
assistant
I am Scott Anderson.
user
There is a flight on Frontier airline, flight number 1003 it cost only 100.
assistant
Ok, proceed with the booking.
user
Your ticket is booked.
assistant
Thanks  for your information.
user
Thank you.
assistant