Hello.
user
Hello. How can I aid you?
assistant
As I am a scientist, I want to attend science festival with my students at Denver. Can you do the reservation?
user
Sure, I can help you. Can I know your travelling dates?
assistant
Dates are 09/17 and 09/19.
user
May I know your  name?
assistant
Mark Davis here.
user
Please share me your airport codes.
assistant
My airport codes are JFK-DEN.
user
We found a UA airline, flight number:1001 and the price is 200.
assistant
Please do the booking.
user
Your flight ticket has been reserved.
assistant
Thank you so much.
user
Thank you.
assistant