You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in reserving me a flight from IAD to visit all the holy places at DCA?

ASSISTANT: Sure, when are you planning to make your trip?

USER: Thank you, I would like to start on Apr 23rd and return on Apr 25th.

ASSISTANT: Do you need a flag stop in the middle?

USER: I prefer a single flag stop.

ASSISTANT: Any other requirements to be met?

USER: I don't have any other requirements.

ASSISTANT: May I know your name?

USER: I am Joseph Nelson.

ASSISTANT: Ok Joseph Nelson, we found a Delta airline with flight number 1003 going on your way with 1 connection in between and the airfare is 100. Is that fine?

USER: I am ok with that. Please, confirm it.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the quick service.

ASSISTANT: Thank you for opting us.