You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I want to fly from HOU to DCA. Can you help me for that booking?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates please?

USER: My planned travel dates are 08/07 and 08/09.

ASSISTANT: Is there any other requirements regarding your journey?

USER: I want a flight with single connection.

ASSISTANT: May I know your name please?

USER: Sure, Donald Davis here.

ASSISTANT: Southwest Airlines are having a flight-1003 with connecting and the ticket fare is 100. Shall I book it?

USER: Yes, you can proceed with that booking.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for the booking.