You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to meet my uncle at Washington, so can you please help me with flight ticket booking from DTW to IAD locations?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you and I would like to depart on Dec 1 and I will recur back on Dec 3.

ASSISTANT: Do you have any specifications about flight connections?

USER: Yes, for this journey I need a single connected flight in between my journey.

ASSISTANT: Do you have any preferences about class?

USER: No, check with the above preferences.

ASSISTANT: Please mention your name.

USER: Sure, I am Helen Mitchell.

ASSISTANT: The American airlines providing an economy class flight with price 100 and the connections 0. Shall I confirm your ticket?

USER: I am ok with the direct flight that I can reach my location with in quick time, you can proceed with booking.

ASSISTANT: Your ticket is booked. The flight number is 1024.

USER: Thank you for your immediate help with my flight ticket booking.

ASSISTANT: Welcome, have a great day.

USER: Welcome.