You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Donna Turner, want to travel from AUS to IAD. Will you please help me in booking my flight?

ASSISTANT: Sure, may I know the travel dates please?

USER: My travelling dates are from 07/19 to 07/21.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 200. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with 1018 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you.