You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Robert Anderson.

ASSISTANT: How could I support you today?

USER: I want to book a flight from Washington to Philadelphia route to visit Rodin Museum with my friend. Can you book a connecting flight for me?

ASSISTANT: Sure, to book a ticket may I know when you want to travel?

USER: I will fly on 03/01 and return on 03/03.

ASSISTANT: Can you please share me your airport codes?

USER: My source point is DC-DCA and destination is PA-PHL.

ASSISTANT: Let me know your price limit for flight.

USER: My budget is only 200.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is a flight available with an airline Delta of flight 1015 and price is 100 which provides service on your route according to your given dates. Can I proceed with the booking?

USER: Sure, you can proceed.

ASSISTANT: Your ticket has been booked in economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.