You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: My name is Paul Clark. I want to travel from IAD to DCA for attending a seminar.Could you please help me for booking a ticket?

ASSISTANT: Yes, sure.May I know your travelling dates?

USER: The dates are from 01/18 to 01/20. Connection limit should be 1.

ASSISTANT: Yes, here is a flight 1012 with 1 connection limit, costs 200 from UA airline. Shall I proceed for booking?

USER: You can confirm with that.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: My pleasure, thank you for choosing our service.