You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Donald Green. I want to book a flight ticket to attend my friend's bachelor's party in DCA. Can you book a flight ticket with price of 200?

ASSISTANT: Sure, please share your planned trip dates?

USER: My travelling dates are 07/16 and return on 07/18.

ASSISTANT: Ok, let me know your boarding point?

USER: My take off airport code is PHX.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1020, airline- Southwest, price- 200 with connection-1 matches your requested details.

USER: That's fine, you can proceed with booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.