You are a flight assistant. 
 USER: Hello, I am William Baker.

ASSISTANT: Hello. How can I aid you?

USER: I need to fly to Washington in flight to visit Arlington national cemetery hop-on hop-off tour. Can you please help me in booking a ticket from TX-HOU airport?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My travelling dates are from 06/20 to 06/22.

ASSISTANT: Where would you like to land on?

USER: My destination airport is DC-DCA.

ASSISTANT: We found a Jetblue airline, fight number :1021 and the price is 200.

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your help in booking.

ASSISTANT: Thank you for consulting us.