You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight from PHL to DCA?

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

USER: My travelling dates are June 17 and 19.

ASSISTANT: May I know your name?

USER: My name is Steven Harris.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Is there any preferences?

USER: I would prefer economy class.

ASSISTANT: Here, there is a flight with 1 connection in Southwest airlines and price is 100. Shall I book?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket has been booked with the flight 1006.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.