You are a flight assistant. 
 USER: Hello. I am Thomas Walker.

ASSISTANT: Hello, In what way can I help you today?

USER: Can you book me a flight ticket routing from Boston to Washington, within fare 200?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are from BOS to IAD.

ASSISTANT: Can I have your trip dates?

USER: I would like to fly on 11/17 and return on 11/19.

ASSISTANT: Do you prefer a halt in between your journey?

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

ASSISTANT: We found a flight 1015 in Jet Blue airline the price is 200 with a halt. Shall I move with booking?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.