You are a flight assistant. 
 USER: Hello, I am Steven Roberts.

ASSISTANT: Hello. How can I aid you?

USER: I would like to book a flight ticket from Boston on 01/18 to participate in robotic workshop and I intend to return on 01/20. Can you help me to book a flight ticket?

ASSISTANT: Sure, I can help you. Can I know your airport codes?

USER: My airport codes are from  MA-BOS to DC-IAD.

ASSISTANT: Do you need any connection limit?

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

ASSISTANT: Ok. We found a UA airline, flight number:1001 and the price is 100.

USER: That's fine, you can go ahead.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for consulting us.