You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name please?

USER: I am Nicholas Young.

ASSISTANT: How can I assist you today?

USER: I am planning to spend my weekend with my parents in Boat House Row at Philadelphia, so please help me in booking a flight ticket.

ASSISTANT: Sure, I will help you. May I know your planned journey dates?

USER: I would like to fly on 04/17 and return on 04/19.

ASSISTANT: Ok, how much you can spend for a flight ticket?

USER: I can afford up to 5000.

ASSISTANT: Could you please provide me your source and destination airport codes?

USER: My starting point from Washington DC - DCA and destination code is PA - PHL.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please wait for a moment, I will check the availability of the flights.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a UA airline, flight number: 1022. It is a connecting flight, price is 300.

USER: You can proceed to booking.

ASSISTANT: Your E- ticket has been generated, It will be sent to your registered E- mail Id.

USER: Thank you for your kind service.

ASSISTANT: Thank you. Have a good day.