You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to attend a Seminar in Los Angeles. Can you please help me for booking the flight ticket?

ASSISTANT: Ok, please can I know your dates of journey to book a ticket?

USER: My travelling dates are Jan 20 and Jan 22.

ASSISTANT: Can you provide me the airport codes of your journey airports?

USER: My airport codes are DTW and LAX.

ASSISTANT: May I know your name to book a ticket?

USER: My name is John Anderson. I prefer economy class.

ASSISTANT: Ok, please can I know the connection limits of your journey too?

USER: I prefer single connecting flight.

ASSISTANT: Do you have any other intents?

USER: No.

ASSISTANT: Ok, there is a flight ticket for the airfare 200 and the airlines American Airline. Can I book the flight 1017?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, the flight ticket is confirmed for a single connection flight and the class is economy as you desire.

USER: Thanks for helping me.

ASSISTANT: Thank you for connecting with our agency.