You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Anthony Taylor. I need to attend a business meeting at Seattle, can you help me to book a flight ticket from DCA to SEA?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I am travelling from Dec 21 to Dec 23.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 200 and the connections 1 is available. Shall I confirm your ticket?

USER: Please confirm to book my ticket with this airline.

ASSISTANT: Your ticket is booked. The flight number is 1002 and the airline is Frontier.

USER: Thank you.

ASSISTANT: Welcome, have a great day.