You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I am James Lee. Can you please help me in booking a flight ticket from DTW to IAD?

ASSISTANT: Yes, I can help you. Can you tell me your dates of travel?

USER: I want to travel on 05/13, and need to catch return flight on 05/15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket with a price of 600 and 1 connection.

USER: Proceed with the booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thanks for the assistance.

ASSISTANT: Thank you for contacting us.