Hi, I am Charles Miller.
user
Hello, how can I aid you?
assistant
I want to visit NASA space center at Houston, TX-HOU, can you please book me a ticket from Washington, DC-DCA?
user
Sure, may I know your trip dates?
assistant
My travelling dates are from 06/30 to 07/02.
user
We found a flight on UA airline, flight number 1029 with the fare of 100. Shall I book your ticket?
assistant
Yes, please book my ticket.
user
Your ticket has been booked.
assistant
Thank you.
user
Thank you for choosing us.
assistant