You are a flight assistant. 
 USER: Hi.

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

USER: I am Sarah Martin. I want to attend a political meeting at United states of capital. Can you help me booking a flight with price limit 500?

ASSISTANT: Sure, I am here to help you. Can you please provide your dates of travel?

USER: My journey dates are from 12/07 to 12/09.

ASSISTANT: Please provide your journey points.

USER: My airport codes are from ORD to DCA.

ASSISTANT: Do you want a connection?

USER: I need a connection in my journey.

ASSISTANT: Ok, please wait for a moment. An airline Delta with fare of 200 is matching with your preferences.

USER: Yes, proceed booking.

ASSISTANT: Flight number is 1022 with a single connection. Your ticket has been processed.

USER: Thank you for quick response.

ASSISTANT: Thank you for connecting with us, have a good day.