You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to visit Detroit, MI-DTW . Can you please help me to search a flight from Washington?

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

USER: Sure, the travelling dates are 06/20 to 06/22.

ASSISTANT: Please provide your source airport code that you want to travel.

USER: The origin airport code is DC-IAD.

ASSISTANT: Please give me a moment. There is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Yes, please confirm my ticket in the name of Gregory Martinez.

ASSISTANT: Your ticket is booked. The flight number is 1003 and the airline is UA.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.