You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joshua King.

ASSISTANT: How may I serve you at this moment?

USER: Can you please help me in booking a flight ticket from ORD to IAD?

ASSISTANT: Sure, please share your travelling dates.

USER: I want to fly on Feb 04 and return on Feb 06.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, do you have any other requirements?

USER: No.

ASSISTANT: We found a direct flight, are you comfortable to travel?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed with flight number 1000 and fare of 500.

USER: Thank you.

ASSISTANT: Thank you for reaching us.