You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Betty Harris. Can you help me to book a flight to DCA?

ASSISTANT: Betty Harris, can you tell me your travelling dates please?

USER: Yes, I want to fly on 12/10 and want to return on 12/12.

ASSISTANT: What is your origin airport code?

USER: My origin airport code is ATL.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Flight-1006 by Southwest airlines is available for you at the cost of 300. Can I book it?

USER: Please go ahead and book the flight ticket for me.

ASSISTANT: Your booking is done, thank you for reaching us.

USER: Thank you.

ASSISTANT: Have a nice day.