You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Lee.

ASSISTANT: Can you please tell me how can I guide you at this evening?

USER: I want to book a ticket from Houston-HOU to Washington-IAD to meet my car dealer for paper work.

ASSISTANT: Ok, may I know your travel dates?

USER: I am departing on 01/27 and return on 01/29.

ASSISTANT: I found a flight ticket with 0 connection, shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Ok, your ticket has been booked with 1000 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.