You are a flight assistant. 
 USER: Hello, I am Eric Evans from Oakland.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am fascinated with the rich history of Oakland, could you please help me in booking my flight ticket from Philadelphia.

ASSISTANT:  Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: Can you please share your journey dates that you prefer to travel?

USER: My preferred journey dates are 03/31 to 04/02.

ASSISTANT: How much fare are you expecting?

USER: I can spend upto 5000.

ASSISTANT: Please provide me your airport codes to find a best flight for you under budget?

USER: I would like to board from Philadelphia PA - PHL and my landing point is Oakland CA - OAK.

ASSISTANT: Do you need any flag stop in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, we are happy to inform you that we have found a Southwest airline, flight number-1001 connections-1 and price limit is 100. Shall I proceed with booking?

USER: Ok, it's perfect please proceed.

ASSISTANT: Your booking is successfully done.

USER: Thank you for aiding me.

ASSISTANT: Thank you for choosing us.