You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Kevin Lee. Can you help me to book a flight ticket from DFW to IAD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my planned travel dates are 03/22 and 03/24.

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

USER: Yes, I need a halt.

ASSISTANT: Please wait for a moment. We found an airline: JetBlue, flight number: 1003 and price is 100.

USER: Sure, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.