You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: Please book a ticket from Houston, TX-HOU to Washington DC-DCA.

ASSISTANT: Sure. May I know your good name?

USER: I am Brian Walker.

ASSISTANT: To proceed booking I need your trip dates.

USER: My journey dates are from 11/01 to 11/03.

ASSISTANT: Thanks for waiting, there is  a flight with airline: Delta, flight number:1000, 1 connection, price 100. Shall I proceed?

USER: Please proceed to book a ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thanks.

ASSISTANT: Thank you, have a happy journey.