You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brian Hall.

ASSISTANT: How can I help you?

USER: Could you please book a flight ticket from NY-EWR to DC-IAD?

ASSISTANT: Sure, will you provide your travelling dates?

USER: My departure day is 07/05 and return day is 07/07.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting.As per your request the flight is available. The flight number is 1004 with price 100 and the connections 1. Are you ok with this?

USER: Please book this flight ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us.Have a nice day.