You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you from Global travel agency?

USER: Thank you. I have a plan to visit Washington DC - IAD about to spread my business there.So, can you help me to book a flight ticket?

ASSISTANT: Please provide your journey dates.

USER: My journey dates are 01/30 and 02/01.

ASSISTANT: May I know your origin airport codes to check the flight availability?

USER: My origin airport code is Austin, TX - AUS.

ASSISTANT: Please provide your good name to proceed further.

USER: Myself Margaret Lee.

ASSISTANT: Wait a while please.

USER: Ok.

ASSISTANT: Margaret Lee, I have found a flight 1027 of Delta airlines available on your route. Shall I book your ticket?

USER: Ok, if it is with 1 connected flight book it for me.

ASSISTANT: Yes, this flight has 1 connection limit and your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you, have a safe journey.