You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

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

ASSISTANT: Sure, I am here to help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are Sep 06 and Sep 08.

ASSISTANT: Can I know your airport codes please?

USER: My airport codes are DTW and IAD.

ASSISTANT: Do you need any airline preferences?

USER: No.

ASSISTANT: Can I know your name please?

USER: My name is Cynthia Adams.

ASSISTANT: Do you prefer any class?

USER: I would prefer economy class.

ASSISTANT: Can I know your connection limit?

USER: I prefer single connecting flight.

ASSISTANT: There is a flight with connection 1 and price 100 with flight number 1018, can I proceed?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1018.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.