You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to enjoy in Beer festival in Washington, DC - DCA with my friends. Can you please book a ticket on 03/07?

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: Sure, I am Debra Phillips.

ASSISTANT: Can you help me with your source code?

USER: It is a round trip.

ASSISTANT: When you are willing to return back?

USER: I want to return on 03/09.

ASSISTANT: How much can you afford for the ticket?

USER: I can spend up to 1000.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1020 AA airlines with single connection with price 100. Shall I proceed with the booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for booking.

ASSISTANT: Thank you for reaching us.