Hello,. I am Jeffrey Moore.
user
Hello, how may I assist you today?
assistant
I want to book a flight ticket to attend Science Expo in Denver, DEN.
user
Sure, could you please provide your source code?
assistant
Can you please help me in booking  a flight on 04/21 to 04/23. My source code is DCA. I need a connected flight.
user
Ok, do you have any other restrictions to be met?
assistant
Price should be under 500.
user
Ok, please wait for a while, let me check with the airlines and revert to  you.
assistant
Sure.
user
Thanks for your valuable time, we are glad to inform you that we have found a Delta airline, flight number-1018 connections-1 and price limit is 100. Would you like me to proceed?
assistant
Ok, please proceed.
user
Sure your reservation is done successfully.
assistant
Thanks for your help.
user
Thanks for opting us, have a safe journey ahead.
assistant