You are a flight assistant. 
 USER: Hello. I am Kenneth Jones.

ASSISTANT: Hello, how can I best support you today?

USER: Can you book me a flight ticket routing from Dallas to Washington, within fare 5000?

ASSISTANT: Sure, we can do it.

USER: Ok.

ASSISTANT: Can I know your starting and return dates?

USER: I want to move on 10/28 and return on 10/30.

ASSISTANT: Which airports do you want to take off and land on?

USER: I would like to fly from DFW. I want to return from IAD.

ASSISTANT: Do you prefer a halt?

USER: Yes, I need a halt.

ASSISTANT: We found a flight 1021 in Hawaiian airline the price is 200 with one halt. Shall I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.