You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to have a round trip in DCA in the month of December. Can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please share your journey dates to search a flight?

USER: My travelling dates are 12/05 and 12/07.

ASSISTANT: May I know your name?

USER: I am Eric Garcia.

ASSISTANT: Flight-1011 with price of 100 from Southwest airline is available for you. Shall I proceed?

USER: Yes, please proceed with my booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking my flight ticket with Southwest airline.

ASSISTANT: Welcome.