You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Katherine Edwards. I want to book a flight ticket from IAD to LAS. Can you find a flight ticket for me?

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

USER: Sure, my planned trip dates are on 09/20 and return on 09/22.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Yes, you can proceed with the booking.

ASSISTANT: Your ticket is booked. The flight number is 1008 and the airline is UA.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.