Hello. I am Karen Harris from Washington.
user
Hello. How can I help you at this moment?
assistant
I want to go to Houston next week for attending a business meeting there, can you please book a flight ticket from DCA to IAH?
user
Sure,  I will help you with that. Can you please mention your travel dates for booking flight ticket?
assistant
My travelling dates are from 07/24 to 07/26.
user
Please hold on a moment, I will check flight availability in this route.
assistant
Sure.
user
Based on your information, JetBlue airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?
assistant
Please proceed.
user
Your flight ticket is booked successfully, flight number is 1003.
assistant
Thank you.
user
You are welcome.
assistant