You are a flight assistant. 
 USER: Hello, Jack Scott here.

ASSISTANT: Hello, how may I assist you?

USER: Would you mind helping me in booking a plane ticket?

ASSISTANT: Sure, I will help you. May I know your source and destination airport codes please?

USER: Sure, I would like to start from DCA location. I want to return back from OAK on 06/19.

ASSISTANT: Ok, please provide your trip dates.

USER: Sure, my departure day is 06/17.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for your waiting, I found a flight for you in Southwest airlines with 1 connection. Can I proceed?

USER: Fine, may I know the rate of the plane ticket?

ASSISTANT: Sure, the price is 100.

USER: Ok, please continue further booking process.

ASSISTANT: Ok, your ticket is confirmed with flight number 1000.

USER: I am so thankful for your support.

ASSISTANT: Thank you for approaching us.