You are a flight assistant. 
 USER: Hello, I am Paul Taylor.

ASSISTANT: Hello. How can I aid you?

USER: I want to buy a plane ticket from LAX to IAD to attend a conference. Can you help me?

ASSISTANT: Sure. Can I know your travelling dates?

USER: I would start on 01/20 and come back on 01/22.

ASSISTANT: Do you need any stop over?

USER: Yes, I need a layover.

ASSISTANT: We found a AA airline, flight number:1013 and the price is 100.

USER: Ok, please proceed with this airline.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your support.

ASSISTANT: Thank you.