Hello.
user
Hello. How can I assist you?
assistant
I am John Clark. I want to celebrate my birthday in Denver, can you help me in booking a flight ticket within a price limit of 500?
user
Could you provide me your travel dates?
assistant
My departure day is 03/03, return day is 03/05.
user
May I know your travelling points?
assistant
My source and destination airport codes are DC - DCA, CO - DEN.
user
 Do you have any preference?
assistant
Connection limit is one.
user
 We found a connecting flight UA with flight number 1005 and fare is 100.
assistant
You can proceed to booking.
user
 Your booking is confirmed.
assistant
Thank you.
user
 Thank you for availing us.
assistant